Cite

Surveyors at work, Chengdu, Sichuan, China, ca. 1930

MLA

Surveyors at Work, Chengdu, Sichuan, China, Ca. 1930. 1930. https://collections.library.yale.edu/catalog/11432646.

APA, 6th edition

Surveyors at work, Chengdu, Sichuan, China, ca. 1930. (1930). [General views (AAT), photographs (AAT)]. https://collections.library.yale.edu/catalog/11432646.