Cite

At Winnebago Agency. Flanked by Indian Chief Clerk (left) and Supt. Parker (rt. of picture)

MLA

At Winnebago Agency. Flanked by Indian Chief Clerk (Left) and Supt. Parker (Rt. of Picture). 1936. https://collections.library.yale.edu/catalog/2014819.

APA, 6th edition

At Winnebago Agency. Flanked by Indian Chief Clerk (left) and Supt. Parker (rt. of picture). (1936). [Photograph albums, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2014819.