Cite

Unknown photographer Group of infantry soldiers before tent, two at left playing at fighting with their bayonets. Photographic postcard

MLA

Simpson, Randolph Linsly, 1927-1992. Unknown photographer Group of infantry soldiers before tent, two at left playing at fighting with their bayonets. Photographic postcard. Box 25. circa 1910. https://collections.library.yale.edu/catalog/16172733.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 25"])(circa 1910)[Unknown photographer Group of infantry soldiers before tent, two at left playing at fighting with their bayonets. Photographic postcard]. https://collections.library.yale.edu/catalog/16172733.