Cite

Richards, Leopold ("Leo")

MLA

Hughes, Langston, 1902-1967. Richards, Leopold ("Leo"). Box 136, folder 2539. 1946-52, n.d.. https://collections.library.yale.edu/catalog/32469050.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 136, folder 2539"])(1946-52, n.d.)[Richards, Leopold ("Leo")]. https://collections.library.yale.edu/catalog/32469050.