Verbatim text: Clark, W. D. 1979. The taxonomy of Hazardia (Compositae: Astereae). Madroño 26: 105–127.
Author: Clark, W.D.
Year: 1979
Title: The taxonomy of Hazardia (Compositae: Astereae)
Journal: Madroño
Volume: 26
Pages: 105–127