MLA

Hemberger, Armin B. Chronic and Acute Cholangeitis. Dilated Bile Ducts in a Superficial Hepatic Scar. Drawing A. Ruptured Bile Duct. 1923. https://collections.library.yale.edu/catalog/15948551.

APA, 6th edition

Hemberger, A. B. (1923). Chronic and acute cholangeitis. Dilated bile ducts in a superficial hepatic scar. Drawing A. Ruptured bile duct. [Drawings (AAT)]. https://collections.library.yale.edu/catalog/15948551.