Cite

Doctors at work on the field of battle [graphic].

MLA

Doctors at Work on the Field of Battle [Graphic]. Harper & Brothers, 0AD. https://collections.library.yale.edu/catalog/17338494.

APA, 6th edition

Doctors at work on the field of battle [graphic]. (0 C.E.). [Engravings]. Harper & Brothers. https://collections.library.yale.edu/catalog/17338494.