Watkins' New Boudoir Series, Yo Semite, Pacific Coast, Yellowstone Park, &c. 15 mounted photographs, 12.1 x 20.9 cm. on mounts 13.8 x 21.5 cm.
MLA
Hobart, Carroll T. Watkins' New Boudoir Series, Yo Semite, Pacific Coast, Yellowstone Park, &c. 15 Mounted Photographs, 12.1 x 20.9 Cm. on Mounts 13.8 x 21.5 Cm. 0AD. https://collections.library.yale.edu/catalog/2017207.
APA, 6th edition
Hobart, C. T. (0 C.E.). Watkins' New Boudoir Series, Yo Semite, Pacific Coast, Yellowstone Park, &c. 15 mounted photographs, 12.1 x 20.9 cm. on mounts 13.8 x 21.5 cm. https://collections.library.yale.edu/catalog/2017207.
