Asa Gray: Perbedaan antara revisi

* {{cite letter|ref=harv |first=Charles |last=Darwin |recipient=Asa Gray |subject=Letter 13031, Darwin Correspondence Project |date=29 Januari 1881 |url=http://www.darwinproject.ac.uk/entry-13031 |accessdate=January 1, 2015}}

* {{cite book|ref = harv|last=Darwin|first=Charles|editor-last=Darwin|editor-first=Francis|title=The Life and Letters of Charles Darwin|year=1888|publisher=John Murray, Albemarle Street|location=London|url=https://books.google.com/books?id=9yESAAAAYAAJ&pg=PA60}}

* {{cite book|ref = harv|last=Donnelly|first=Walter A.|title=The University of Michigan: An Encyclopedic Survey, Pt 8|year=1958|publisher=University of Michigan Press|location=Ann Arbor, MI|url=https://books.google.com/books?id=7WBqAAAAMAAJ&pg=PA1369}}

* {{cite web|ref={{sfnRef|Farlow|1889}}|last=Farlow|first=W. G.|title=Memoir of Asa Gray 1810–1888|url=http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/gray-asa.pdf|format=PDF|publisher=National Academy of Sciences |accessdate=18 Januari 2015}}

* {{cite book|ref=harv|url=https://books.google.com/books?id=yL8nAAAAYAAJ&pg=RA2-PA142|publisher=United States Geological Survey|location=Washington, DC|last=Gannett|first=Henry|title=The Origin of Certain Place Names in the United States|volume=258|edition=2|year=1905}}

* {{cite web|ref={{sfnRef|Holmgren|2015}}|last=Holmgren|first=Noel H.|url=http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=114037|title=Grayia)|publisher=eFloras|accessdate=31 Januari 2015}}

* {{cite journal|ref=harv|last=Jenkins|first=Charles F.|title=Asa Gray and his Quest for ''Shortia galacifolia''|journal=Arnoldia|volume=2|issue=3 & 4|year=1942|jstor=42953488}}

* {{cite book|ref=harv|last=Linden|first=Blanche M. G.|title=Silent City on a Hill: Picturesque Landscapes of Memory and Boston's Mount Auburn Cemetery|year=2007|publisher=University of Massachusetts Press|location=Amherst, MA|url=https://books.google.com/books?id=AM-x8sYjQXcC&pg=PA284|isbn=978-1-55849-571-5}}

* {{cite journal|ref=harv|url=https://books.google.com/books?id=dAJSAAAAYAAJ&pg=PA589|title=Concerning the Quatrain| date=January 1904|first= Brander|last=Matthews|journal=The Lamp|volume=27|page=589}}

* {{cite web| ref = {{sfnRef|Harvard Gazette|2011}}|publisher=Harvard Gazette|url=http://news.harvard.edu/gazette/story/2011/06/gray-gets-stamp-of-approval/|title=Gray Gets Stamp of Approval|date=30 Juni 2011|accessdate=31 Desember 2014}}

* {{cite web| ref = {{sfnRef|Gray Herbarium|2015}}|url=http://huh.harvard.edu/pages/gray-herbarium-gh|title=Gray Herbarium (GH)|publisher=Harvard University Herbaria & Libraries|accessdate=4 Januari 2015}}

* {{cite web| ref = {{sfnRef|University of Michigan Geriatrics Center|2015}}|url=http://www.med.umich.edu/geriatrics/community/services/assistedliving.htm|title=Housing – Independent, Assisted Living, Alzheimer's|publisher=University of Michigan Geriatrics Center and Institute of Gerontology|accessdate=3 Januari 2015}}

* {{cite web|ref={{sfnRef|City of Lake Helen, Florida|2014}}|publisher=City of Lake Helen, Florida|title=Lake Helen Public Information City Guide|url=http://lakehelen.com/public.html|accessdate=31 Desember 2014|archive-date=2015-02-13|archive-url=https://web.archive.org/web/20150213231337/http://lakehelen.com/public.html|dead-url=yes}}

* {{cite web| ref = {{sfnRef|Stony Brook University|2015}}|url=http://studentaffairs.stonybrook.edu/res/housing_facilities/reshalls_apts/mendelsohn.shtml|title=Mendelsohn Quad|publisher=Stony Brook University|accessdate=3 Januari 2015}}

* {{Librivox author |id=8784}}

* [http://www.lib.cam.ac.uk/Departments/Darwin Darwin Correspondence Project] {{Webarchive|url=https://web.archive.org/web/20071212020156/http://www.lib.cam.ac.uk/Departments/Darwin/ |date=2007-12-12 }}

* [http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/gray-asa.pdf National Academy of Sciences Biographical Memoir]