MLA

Marchesi, V., and George E. Palade. Cell Fractionation Spectrin. Yale University School of Medicine, 2AD. https://collections.library.yale.edu/catalog/15817833.

APA, 6th edition

Marchesi, V., & Palade, G. E. (2 C.E.). Cell Fractionation spectrin [Transmission electron micrograph]. Yale University School of Medicine. https://collections.library.yale.edu/catalog/15817833.