Cite

U.S.P.R.R. Exp. & Surveys. Cal. Plate VI. Entrance of the Tejon Pass and a portion of the Tejon

MLA

T. Sinclair's Lith., Philadelphia, and Pennsylvania. U.S.P.R.R. Exp. & Surveys. Cal. Plate VI. Entrance of the Tejon Pass and a Portion of the Tejon. 0AD. https://collections.library.yale.edu/catalog/2015579.

APA, 6th edition

T. Sinclair's Lith., P., & P. (0 C.E.). U.S.P.R.R. Exp. & Surveys. Cal. Plate VI. Entrance of the Tejon Pass and a portion of the Tejon [Lithographs, Planographic prints]. https://collections.library.yale.edu/catalog/2015579.