MLA

United States. Bureau of Indian Affairs, United States. Office of Indian Affairs. Indians at Work / Office of Indian Affairs. The Office, 0AD. https://collections.library.yale.edu/catalog/16708707.

APA, 6th edition

United States. Bureau of Indian Affairs, U. S. O. of I. A. (0 C.E.). Indians at work / Office of Indian Affairs. [Periodicals, Photomechanical prints, Typescripts]. The Office, https://collections.library.yale.edu/catalog/16708707.