Sejarah Bumi: Perbedaan antara revisi

<ref name="gibbons">{{cite journal|last = Gibbons|first = Ann|year = 2003|title = Oldest Members of ''Homo sapiens'' Discovered in Africa|journal = [[Science (journal)|Science]]|volume = 300|issue = 5626|page = 1641|doi = 10.1126/science.300.5626.1641|url = http://www.sciencemag.org/content/300/5626/1641.summary|accessdate = 2012-04-13|pmid = 12805512|ref = harv}} (abstract)</ref>

<ref name="Chauvet">{{cite web|url = http://www.metmuseum.org/toah/hd/chav/hd_chav.htm|title = Chauvet Cave|publisher = [[Metropolitan Museum of Art]]|accessdate = 2006-04-11}}</ref>

<ref name="Fortey">{{Cite book|last = Fortey|first = Richard|authorlink = Richard Fortey|title = Life: A Natural History of the First Four Billion Years of Life on Earth|origyear = 1997|year = 1999|month = September|publisher = Vintage Books|location = New York|isbn = 0-375-70261-X|pages = 138–140, 300|chapter = Landwards, Humanity}}</ref>

<ref name="hopfe">{{Cite book|last = Hopfe|first = Lewis M.|title = Religions of the World|url = https://archive.org/details/religionsofworld0000hopf_w0d2|origyear = 1976|edition = 4th|isbn = 0-02-356930-1|year = 1987|publisher = MacMillan Publishing Company|location = New York|chapter = Characteristics of Basic Religions|pages = [https://archive.org/details/religionsofworld0000hopf_w0d2/page/17 17], 17–19}}</ref>

<ref name="Davies">{{cite journal|last = Davies|first = Paul|authorlink = Paul Davies|date = October 6, 2005|title = A quantum recipe for life|journal = [[Nature (journal)|Nature]]|volume = 437|issue = 7060|page = 819|url = http://www.nature.com/nature/journal/v437/n7060/full/437819a.html|doi = 10.1038/437819a|pmid=16208350|bibcode = 2005Natur.437..819D|ref = harv }} (subscription required).</ref>

<ref name=Martin>{{cite journal|author=Martin, W. and Russell, M.J.|year=2003|title=On the origins of cells: a hypothesis for the evolutionary transitions from abiotic geochemistry to chemoautotrophic prokaryotes, and from prokaryotes to nucleated cells|journal=Philosophical Transactions of the Royal Society: Biological|volume=358|pages=59–85|pmid=12594918|pmc=1693102|doi=10.1098/rstb.2002.1183|issue=1429}}</ref>

<ref name=Wachtershauser>{{cite journal|author=Wächtershäuser, G.|title=Life as we don't know it|journal=Science|volume=289|issue=5483|pages=1307–8|year=2000|month=August|pmid=10979855|doi=10.1126/science.289.5483.1307}}</ref>

<ref name=Vasas>{{Cite journal|last=Vasas|first=V.|coauthors=Szathmáry, E., Santos, M.|title=Lack of evolvability in self-sustaining autocatalytic networks constraints metabolism-first scenarios for the origin of life|journal=Proceedings of the National Academy of Sciences|date=4 January 2010|volume=107|issue=4|pages=1470–1475|doi=10.1073/pnas.0912628107|bibcode = 2010PNAS..107.1470V }}</ref>

* {{Cite book|editor1-first=F. M.|editor1-last=Gradstein|editor2-first=James George|editor2-last=Ogg|editor3-first=Alan Gilbert|editor3-last=Smith|title=A Geological Time Scale 2004|year=2004|publisher=Cambridge University Press|isbn=978-0-521-78673-7|others=Reprinted with corrections 2006|ref=harv}}

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* Melosh, H. J.; Vickery, A. M. & Tonks, W. B. (1993). ''Impacts and the early environment and evolution of the terrestrial planets'', in Levy, H.J. & Lunine, J.I. (eds.): ''Protostars and Planets III'', [[University of Arizona]] Press, [[Tucson, Arizona|Tucson]], pp.&nbsp;1339–1370.

* {{cite journal | last1 = Stern | first1 = T. W. | last2 = Bleeker | first2 = W. | year = 1998 | title = Age of the world's oldest rocks refined using Canada's SHRIMP: The Acasta Gneiss Complex, Northwest Territories, Canada | url =https://archive.org/details/sim_geoscience-canada_1998-03_25_1/page/27| journal = Geoscience Canada | volume = 25 | issue = | pages = 27–31 }}

* {{Cite journal|last=Wetherill|first=G. W.|title=Occurrence of Earth-Like Bodies in Planetary Systems|journal=Science|year= 1991|volume=253|issue=5019|pages=535–538|doi=10.1126/science.253.5019.535|pmid=17745185|ref=harv|bibcode = 1991Sci...253..535W }}