Verbatim text: Bemis, W. P. and T. W. Whitaker. 1969. The xerophytic Cucurbita of northwestern Mexico and southwestern United States. Madroño 20: 33–41.
Author: Bemis, W.P., Whitaker, T.W.
Year: 1969
Title: The xerophytic Cucurbita of northwestern Mexico and southwestern United States
Journal: Madroño
Volume: 20
Pages: 33–41