Yenching students and Pa-chia-tsun duck farmer
MLA
Yenching Students and Pa-Chia-Tsun Duck Farmer. 0AD. https://collections.library.yale.edu/catalog/17095190.
APA, 6th edition
Yenching students and Pa-chia-tsun duck farmer. (0 C.E.). [Photographs (AAT)]. https://collections.library.yale.edu/catalog/17095190.