Students in Mr. Hoffman's class conduct fish-pond study
MLA
Students in Mr. Hoffman's Class Conduct Fish-Pond Study. 1924. https://collections.library.yale.edu/catalog/12374475.
APA, 6th edition
Students in Mr. Hoffman's class conduct fish-pond study. (1924). [Photographs (AAT)]. https://collections.library.yale.edu/catalog/12374475.