Verbatim text: Spooner, D. M. 1990. Systematics of Simsia (Compositae–Heliantheae). Syst. Bot. Monogr. 30: 1–90.
Author: Spooner, D.M.
Year: 1990
Title: Systematics of Simsia (Compositae–Heliantheae)
Journal: Syst. Bot. Monogr
Volume: 30
Pages: 1–90