Cite

Mission De Abril. Watrous, New Mexico (GFB-68-2926)

MLA

Plowden, David (1932). Mission De Abril. Watrous, New Mexico (GFB-68-2926). Box 139. 1968. https://collections.library.yale.edu/catalog/2042674.

APA, 6th edition

Plowden, David (1932). (["Box 139"])(1968)[Mission De Abril. Watrous, New Mexico (GFB-68-2926)]. https://collections.library.yale.edu/catalog/2042674.