Verbatim text: Allen, G. A. 1984. Morphological and cytological variation within the western North American Aster occidentalis complex (Asteraceae). Syst. Bot. 9: 175–191.
Author: Allen, G.A.
Year: 1984
Title: Morphological and cytological variation within the western North American Aster occidentalis complex (Asteraceae)
Journal: Syst. Bot
Volume: 9
Pages: 175–191