MLA

H. Sfeifert, Lith. Kneelands Block, and Wis Milwaukee. Milwaukee, Wis. 0AD. https://collections.library.yale.edu/catalog/2015976.

APA, 6th edition

H. Sfeifert, L. K. B., & Milwaukee, W. (0 C.E.). Milwaukee, Wis [Lithographs, Planographic prints]. https://collections.library.yale.edu/catalog/2015976.