Cite

Ex Libris, Howard S. Colwell

MLA

Colwell, Howard S. Ex Libris, Howard S. Colwell. 0AD. https://collections.library.yale.edu/catalog/16788828.

APA, 6th edition

Colwell, H. S. (0 C.E.). Ex Libris, Howard S. Colwell [Bookplates]. https://collections.library.yale.edu/catalog/16788828.