Arnold M. Baldwin's 1923 street map and directory of the city of Santa Cruz, California.
MLA
Baldwin, Arnold M. Arnold M. Baldwin's 1923 Street Map and Directory of the City of Santa Cruz, California. Arnold M. Baldwin, 0AD. https://collections.library.yale.edu/catalog/15818782.
APA, 6th edition
Baldwin, A. M. (0 C.E.). Arnold M. Baldwin's 1923 street map and directory of the city of Santa Cruz, California. [Maps]. Arnold M. Baldwin, https://collections.library.yale.edu/catalog/15818782.