Cleaning movement, May 30, 1931
MLA
Cleaning Movement, May 30, 1931. 0AD. https://collections.library.yale.edu/catalog/17211573.
APA, 6th edition
Cleaning movement, May 30, 1931. (0 C.E.). [Photographs (AAT)]. https://collections.library.yale.edu/catalog/17211573.