MLA

Jamieson, James D., et al. Guinea Pig Pancreas Injected for Lobule Preparation. Yale University School of Medicine, 4AD. https://collections.library.yale.edu/catalog/15817847.

APA, 6th edition

Jamieson, J. D., Palade, G. E., & Scheele, G. A. (4 C.E.). Guinea pig pancreas injected for lobule preparation [Photographs (AAT)]. Yale University School of Medicine. https://collections.library.yale.edu/catalog/15817847.