Cite

Easter invocation. 20th U.S. Infantry

MLA

Easter Invocation. 20th U.S. Infantry. 1915. https://collections.library.yale.edu/catalog/2017335.

APA, 6th edition

Easter invocation. 20th U.S. Infantry. (1915). [Photographic postcards, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2017335.