Reference:Webber1953b
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Verbatim text: Webber, J. M. 1953. Yuccas of the Southwest. Washington. [U.S.D.A. Agric. Monogr. 17.]
Author: Webber, J.M.
Year: 1953
Title: Yuccas of the Southwest
Journal: U.S.D.A. Agric. Monogr
Volume: 17