Cite

U.S.P.R.R. Exp. & Surveys, California. Botany-Plate VIII. Asclepias macrophylla

MLA

Ackerman Lith., New York, and New York. U.S.P.R.R. Exp. & Surveys, California. Botany-Plate VIII. Asclepias Macrophylla. 0AD. https://collections.library.yale.edu/catalog/2015668.

APA, 6th edition

Ackerman Lith., N. Y., & York, N. (0 C.E.). U.S.P.R.R. Exp. & Surveys, California. Botany-Plate VIII. Asclepias macrophylla [Lithographs, Planographic prints]. https://collections.library.yale.edu/catalog/2015668.