Cite

Scenes from siege of Nanking (glass negatives) - Peh Chi Ko, 23 minutes after struck by shell

MLA

Scenes from Siege of Nanking (Glass Negatives) - Peh Chi Ko, 23 Minutes after Struck by Shell. 0AD. https://collections.library.yale.edu/catalog/12377417.

APA, 6th edition

Scenes from siege of Nanking (glass negatives) - Peh Chi Ko, 23 minutes after struck by shell. (0 C.E.). [Photographs (AAT)]. https://collections.library.yale.edu/catalog/12377417.