Reference:Hall1967a
Revision as of 00:04, 27 July 2019 by Unknown user (talk)
Verbatim text: Hall, G. W. 1967. A Biosystematic Study of the North American Complex of the Genus Bidens (Compositae). Ph.D. dissertation. Indiana University.
Author: Hall, G.W.
Year: 1967
Title: A Biosystematic Study of the North American Complex of the Genus Bidens (Compositae)