Cite

[Evergreens on mountainside]. 269c

MLA

Karge, Annette, McClintock, Walter, 1870-1949. [Evergreens on mountainside]. 269c. Lantern slides box 13. undated. https://collections.library.yale.edu/catalog/2010614.

APA, 6th edition

Karge, Annette, & McClintock, Walter, 1870-1949. (["Lantern slides box 13"])(undated)[[Evergreens on mountainside]. 269c]. https://collections.library.yale.edu/catalog/2010614.