Cite

Scenes from siege of Nanking (glass negatives) - Foreigners who remained in Nanking during siege

MLA

Scenes from Siege of Nanking (Glass Negatives) - Foreigners Who Remained in Nanking during Siege. 0AD. https://collections.library.yale.edu/catalog/12377418.

APA, 6th edition

Scenes from siege of Nanking (glass negatives) - Foreigners who remained in Nanking during siege. (0 C.E.). [Photographs (AAT)]. https://collections.library.yale.edu/catalog/12377418.