Cite

Mountain train tunnel, Yunnan, China, 1938

MLA

Mountain Train Tunnel, Yunnan, China, 1938. 0AD. https://collections.library.yale.edu/catalog/16714513.

APA, 6th edition

Mountain train tunnel, Yunnan, China, 1938. (0 C.E.). [Photographs (AAT)]. https://collections.library.yale.edu/catalog/16714513.