"A Land for Heroes"
MLA
Byron, Robert, 1905-1941. "A Land for Heroes". Box 35, folder 564. 1940 January 23. https://collections.library.yale.edu/catalog/17464838.
APA, 6th edition
Byron, Robert, 1905-1941. (["Box 35, folder 564"])(1940 January 23)["A Land for Heroes"]. https://collections.library.yale.edu/catalog/17464838.