Cite

Lewis, Grace Hegger (wife)

MLA

Lewis, Sinclair, 1885-1951. Lewis, Grace Hegger (wife). Box 54, folder 773. undated. https://collections.library.yale.edu/catalog/10172271.

APA, 6th edition

Lewis, Sinclair, 1885-1951. (["Box 54, folder 773"])(undated)[Lewis, Grace Hegger (wife)]. https://collections.library.yale.edu/catalog/10172271.