Cite

U.S.P.R.R. Exp. & Surveys. Cal. Geology View X. Rounded Hills Tertiary, (between Ocoya Creek and Posuncula River)

MLA

Hoen, A., et al. U.S.P.R.R. Exp. & Surveys. Cal. Geology View X. Rounded Hills Tertiary, (between Ocoya Creek and Posuncula River). 0AD. https://collections.library.yale.edu/catalog/2015612.

APA, 6th edition

Hoen, A., Co., B., & Maryland, F. a sketch by C. K. (0 C.E.). U.S.P.R.R. Exp. & Surveys. Cal. Geology View X. Rounded Hills Tertiary, (between Ocoya Creek and Posuncula River) [Lithographs, Planographic prints]. https://collections.library.yale.edu/catalog/2015612.