Cite

15th Inf. encampment at Ft. Sam Houston ... Tex

MLA

15th Inf. Encampment at Ft. Sam Houston ... Tex. 0AD. https://collections.library.yale.edu/catalog/2017378.

APA, 6th edition

15th Inf. encampment at Ft. Sam Houston ... Tex. (0 C.E.). [Photographic postcards, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2017378.