Verbatim text: Witzman, J. A. 1991. The Biology of Fritillaria pluriflora (Liliaceae): A Rare Endemic of the California Flora. M.S. thesis. California State University, Chico.
Author: Witzman, J.A.
Year: 1991
Title: The Biology of Fritillaria pluriflora (Liliaceae): A Rare Endemic of the California Flora