Scrophulariaceae of the central Rocky mountain states /

Bibliographic Details
Main Author:	Pennell, Francis Whittier, 1886-
Format:	Government Document Book
Language:	English
Published:	Washington : Govt. print. off, 1920.
Series:	Contributions from the United States National Herbarium ; v. 20, pt. 9.
Subjects:	Botany > Rocky Mountains. [Rocky mountains > Botany]. Scrophulariaceae.

Evans: US Documents (Annex 5th floor)