Verbatim text: Urbatsch, L. E. 1978. The Chihuahuan Desert species of Ericameria (Asteraceae). Sida 7: 298–303.
Author: Urbatsch, L.E.
Year: 1978
Title: The Chihuahuan Desert species of Ericameria (Asteraceae)
Journal: Sida
Volume: 7
Pages: 298–303