Cite

Operation of emergency medical services [graphic].

MLA

Operation of Emergency Medical Services [Graphic]. publisher not identified, Government Printing Office, 1942. https://collections.library.yale.edu/catalog/16046964.

APA, 6th edition

Operation of emergency medical services [graphic]. (1942). [Posters, War posters]. publisher not identified, Government Printing Office. https://collections.library.yale.edu/catalog/16046964.