MLA

Denny, Edward, and Co. Denny's Pocket Map of Sutter County, California : Compiled from Latest Official and Private Data / by Edward Denny & Co. Edward Denny & Co., 0AD. https://collections.library.yale.edu/catalog/15818786.

APA, 6th edition

Denny, E., & C. (0 C.E.). Denny's pocket map of Sutter County, California : compiled from latest official and private data / by Edward Denny & Co. [Maps]. Edward Denny & Co., https://collections.library.yale.edu/catalog/15818786.