Verbatim text: Semple, J. C. and F. D. Bowers. 1985. A revision of the goldenaster genus Pityopsis Nuttall (Compositae: Astereae). Waterloo. [Univ. Waterloo Biol. Ser. 29.]
Author: Semple, J.C., Bowers, F.D.
Year: 1985
Title: A revision of the goldenaster genus Pityopsis Nuttall (Compositae: Astereae)
Journal: Univ. Waterloo Biol. Ser.
Volume: 29