Cite

Birkhead, L. M. (Leon Milton)

MLA

Lewis, Sinclair, 1885-1951. Birkhead, L. M. (Leon Milton). Box 46, folder 457. 1927-1946. https://collections.library.yale.edu/catalog/17116537.

APA, 6th edition

Lewis, Sinclair, 1885-1951. (["Box 46, folder 457"])(1927-1946)[Birkhead, L. M. (Leon Milton)]. https://collections.library.yale.edu/catalog/17116537.