MLA

Ficke, Arthur Davison, 1883-1945. "Land's End": typescript, carbon, signed. Box 42, folder 1309. 1938 Aug 23. https://collections.library.yale.edu/catalog/17419052.

APA, 6th edition

Ficke, Arthur Davison, 1883-1945. (["Box 42, folder 1309"])(1938 Aug 23)["Land's End": typescript, carbon, signed]. https://collections.library.yale.edu/catalog/17419052.