MLA

Malinowski, Bronislaw, 1884-1942. Kirchoff, Paul. Box 4, folder 327, reel 3 | reel 3U. 1931-1934. https://collections.library.yale.edu/catalog/32502240.

APA, 6th edition

Malinowski, Bronislaw, 1884-1942. (["Box 4, folder 327, reel 3 | reel 3U"])(1931-1934)[Kirchoff, Paul]. https://collections.library.yale.edu/catalog/32502240.