MLA

Price, H. artist. Dental Care Keeps Him on the Job [Graphic]. Federal Security Agency, U. S. Public Health Service, U.S. Government Printing Office, 0AD. https://collections.library.yale.edu/catalog/16048962.

APA, 6th edition

Price, H. artist. (0 C.E.). Dental care keeps him on the job [graphic] [Sailors, Dental equipment & supplies, Posters, War posters, Lithographs]. Federal Security Agency, U. S. Public Health Service, U.S. Government Printing Office. https://collections.library.yale.edu/catalog/16048962.