MLA

Palade, George E. Nerve Cells Rat Atrium Unmyelinated Nerve Schwann Cell. Yale University School of Medicine, 6AD. https://collections.library.yale.edu/catalog/15817950.

APA, 6th edition

Palade, G. E. (6 C.E.). Nerve Cells Rat atrium unmyelinated nerve Schwann cell [Transmission electron micrograph]. Yale University School of Medicine. https://collections.library.yale.edu/catalog/15817950.