Cite

Boy Scouts setting up tents at 25th anniversary

MLA

Boy Scouts Setting up Tents at 25th Anniversary. 1929. https://collections.library.yale.edu/catalog/12394473.

APA, 6th edition

Boy Scouts setting up tents at 25th anniversary. (1929). [Photographs (AAT)]. https://collections.library.yale.edu/catalog/12394473.