The boys feed these little Mexicans after each meal
MLA
The Boys Feed These Little Mexicans after Each Meal. 0AD. https://collections.library.yale.edu/catalog/2017404.
APA, 6th edition
The boys feed these little Mexicans after each meal. (0 C.E.). [Photographic postcards, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2017404.