MLA

Mautz, Carl, and collector. Carl Mautz Collection of Cartes-De-Visite Photographs of Indians of North America. 0AD. https://collections.library.yale.edu/catalog/32344729.

APA, 6th edition

Mautz, C., & collector. (0 C.E.). Carl Mautz collection of Cartes-de-visite photographs of Indians of North America [Pictorial works, Portraits, Cartes-de-visite (card photographs), Photographic prints, Studio portraits]. https://collections.library.yale.edu/catalog/32344729.