Cite

Ambrotype with a horizontal orientation in half case of five women and four men

MLA

Palmquist, Peter E. Ambrotype with a Horizontal Orientation in Half Case of Five Women and Four Men. 0AD. https://collections.library.yale.edu/catalog/2056731.

APA, 6th edition

Palmquist, P. E. (0 C.E.). Ambrotype with a horizontal orientation in half case of five women and four men. https://collections.library.yale.edu/catalog/2056731.