[Photograph of a young child standing next to a man using a bullhorn in front of a field]
MLA
Lewis, Jon. [Photograph of a Young Child Standing next to a Man Using a Bullhorn in Front of a Field]. 1966. https://collections.library.yale.edu/catalog/10186967.
APA, 6th edition
Lewis, J. (1966). [Photograph of a young child standing next to a man using a bullhorn in front of a field] [Photographic prints.--aat, photographs (AAT)]. https://collections.library.yale.edu/catalog/10186967.