Cite

Ambrotype in a case, of a boy

MLA

Palmquist, Peter E. (1936-2003). Ambrotype in a case, of a boy. Box 7, folder 70. circa 1856. https://collections.library.yale.edu/catalog/2056728.

APA, 6th edition

Palmquist, Peter E. (1936-2003). (["Box 7, folder 70"])(circa 1856)[Ambrotype in a case, of a boy]. https://collections.library.yale.edu/catalog/2056728.