MLA

Schaefer, F. L. Acute Tubercular Peritonitis; Rachitis. 0AD. https://collections.library.yale.edu/catalog/15948137.

APA, 6th edition

Schaefer, F. L. (0 C.E.). Acute Tubercular Peritonitis; Rachitis [Drawings (AAT)]. https://collections.library.yale.edu/catalog/15948137.