MLA

Thayer, Scofield, 1889-1982. Passports. Box 57, folder 1519-1520. 1915-31. https://collections.library.yale.edu/catalog/10590069.

APA, 6th edition

Thayer, Scofield, 1889-1982. (["Box 57, folder 1519-1520"])(1915-31)[Passports]. https://collections.library.yale.edu/catalog/10590069.