MLA

Keating, J. M., and Philadelphia Institute College of Medicine M.D. Ex Libris, Coll Med Philad Instit. 0AD. https://collections.library.yale.edu/catalog/16788931.

APA, 6th edition

Keating, J. M., & M.D., P. I. C. of M. (0 C.E.). Ex Libris, Coll Med Philad Instit [Bookplates]. https://collections.library.yale.edu/catalog/16788931.