Cite

Working in a lab, Chengdu, Sichuan, China, ca. 1934

MLA

Working in a Lab, Chengdu, Sichuan, China, Ca. 1934. 1930. https://collections.library.yale.edu/catalog/11432692.

APA, 6th edition

Working in a lab, Chengdu, Sichuan, China, ca. 1934. (1930). [General views (AAT), photographs (AAT)]. https://collections.library.yale.edu/catalog/11432692.