MLA

Ianacone, John A., and Yale University. School of Medicine. Ex Libris, John A. Ianacone. 1935. https://collections.library.yale.edu/catalog/16788873.

APA, 6th edition

Ianacone, J. A., & of Medicine, Y. U. S. (1935). Ex Libris, John A. Ianacone [Bookplates]. https://collections.library.yale.edu/catalog/16788873.