MLA

Granger, Lester B. (Lester Blackwell), 1896-1976. New York Urban League and the Education of Negro Children in New York City. Box 2, folder 49. 1966. https://collections.library.yale.edu/catalog/16750175.

APA, 6th edition

Granger, Lester B. (Lester Blackwell), 1896-1976. (["Box 2, folder 49"])(1966)[New York Urban League and the Education of Negro Children in New York City]. https://collections.library.yale.edu/catalog/16750175.