Cite

[Photograph of Peter Palmquist, seated with a hand under his chin]

MLA

[Photograph of Peter Palmquist, Seated with a Hand under His Chin]. 1964. https://collections.library.yale.edu/catalog/2068294.

APA, 6th edition

[Photograph of Peter Palmquist, seated with a hand under his chin]. (1964). [Negatives]. https://collections.library.yale.edu/catalog/2068294.