"A Salute to Lloyd Richards"
MLA
Richards, Lloyd, 1919-2006. "A Salute to Lloyd Richards". Box 141, folder 1668-1672. 1991 May 13. https://collections.library.yale.edu/catalog/10900250.
APA, 6th edition
Richards, Lloyd, 1919-2006. (["Box 141, folder 1668-1672"])(1991 May 13)["A Salute to Lloyd Richards"]. https://collections.library.yale.edu/catalog/10900250.