"N"
MLA
Broch, Hermann, 1886-1951. "N". Box 47, folder 1026. 1919-41, n.d.. https://collections.library.yale.edu/catalog/2037289.
APA, 6th edition
Broch, Hermann, 1886-1951. (["Box 47, folder 1026"])(1919-41, n.d.)["N"]. https://collections.library.yale.edu/catalog/2037289.