Cite

[Photograph of Alison and Libby Palmquist playing on swings while libby uses a pillow for a cushion]

MLA

[Photograph of Alison and Libby Palmquist Playing on Swings While Libby Uses a Pillow for a Cushion]. 1964. https://collections.library.yale.edu/catalog/2068331.

APA, 6th edition

[Photograph of Alison and Libby Palmquist playing on swings while libby uses a pillow for a cushion]. (1964). [Negatives]. https://collections.library.yale.edu/catalog/2068331.