Cite

Watkins New Series. 27 unmounted photographs, 11.9 x 19.5 cm.

MLA

Hobart, Carroll T. Watkins New Series. 27 Unmounted Photographs, 11.9 x 19.5 Cm. 0AD. https://collections.library.yale.edu/catalog/2017494.

APA, 6th edition

Hobart, C. T. (0 C.E.). Watkins New Series. 27 unmounted photographs, 11.9 x 19.5 cm. https://collections.library.yale.edu/catalog/2017494.