Fred Alexander Barkley (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Fred Alexander Barkley" in English language version.

refsWebsite

Global rank English rank

18^th place

17^th place

6^th place

6^th place

3,075^th place

3,035^th place

archive.org

Barkley, Fred Alexander. Biodiversity Heritage Library. 1992. ISBN 9789031302246. Retrieved 11 February 2014.

harvard.edu

kiki.huh.harvard.edu

"Harvard University Herbaria - Index of Botanists - Barkley, Fred Alexander". Harvard University Herbaria. Harvard University. 2011. Retrieved 11 February 2014.

ipni.org

International Plant Names Index. F.A.Barkley.