MLA

Bruns, R. Capillary Rat Diaphragm 24h Post IV Ferritin. Yale University School of Medicine, 6AD. https://collections.library.yale.edu/catalog/15817814.

APA, 6th edition

Bruns, R. (6 C.E.). Capillary rat diaphragm 24h post IV ferritin [Transmission electron micrograph]. Yale University School of Medicine. https://collections.library.yale.edu/catalog/15817814.