Verbatim text: Solbrig, O. T. 1964. Infraspecific variation in the Gutierrezia sarothrae complex (Compositae–Astereae). Contr. Gray Herb. 193: 67–115.
Author: Solbrig, O.T.
Year: 1964
Title: Infraspecific variation in the Gutierrezia sarothrae complex (Compositae–Astereae)
Journal: Contr. Gray Herb
Volume: 193
Pages: 67–115