MLA

Gardner, Alexander, 1821-1882. Photographs of Indian delegations : consisting of Kiowas, Comanches, Apaches, Arrapahoes, Caddoes, Wichitas, Wacos, Keechies, Towoccaroes, and Delawares, under charge of Captain Henry E. Alvord, special Indian commissioner. 1872.. https://collections.library.yale.edu/catalog/2019833.

APA, 6th edition

Gardner, Alexander, 1821-1882. (1872.)[Photographs of Indian delegations : consisting of Kiowas, Comanches, Apaches, Arrapahoes, Caddoes, Wichitas, Wacos, Keechies, Towoccaroes, and Delawares, under charge of Captain Henry E. Alvord, special Indian commissioner]. https://collections.library.yale.edu/catalog/2019833.