MLA

Jamieson, James D. Heart Mouse Right Atrium Atrial Granules. Yale University School of Medicine, 11AD. https://collections.library.yale.edu/catalog/15817893.

APA, 6th edition

Jamieson, J. D. (11 C.E.). Heart Mouse right atrium atrial granules [Transmission electron micrograph]. Yale University School of Medicine. https://collections.library.yale.edu/catalog/15817893.