MLA

Xie he yi yuan (Beijing, China). Eighteenth Annual Report of the Medical Superintendant of the Peking Union Medical College Hospital, for the Year Ending June 30, 1926. 1926. https://collections.library.yale.edu/catalog/16932508.

APA, 6th edition

Xie he yi yuan (Beijing, China). (1926)[Eighteenth Annual Report of the Medical Superintendant of the Peking Union Medical College Hospital, for the Year Ending June 30, 1926]. https://collections.library.yale.edu/catalog/16932508.