Cite

Map of San Francisco : early buildings & notes on life in the fifties.

MLA

Cathcart, Ken G. Map of San Francisco : Early Buildings & Notes on Life in the Fifties. Ken Cathcart, 0AD. https://collections.library.yale.edu/catalog/15821546.

APA, 6th edition

Cathcart, K. G. (0 C.E.). Map of San Francisco : early buildings & notes on life in the fifties. [Maps]. Ken Cathcart, https://collections.library.yale.edu/catalog/15821546.