MLA

Ficke, Arthur Davison, 1883-1945. Notes: holograph and typescript. Box 37, folder 1186. n.d.. https://collections.library.yale.edu/catalog/17156211.

APA, 6th edition

Ficke, Arthur Davison, 1883-1945. (["Box 37, folder 1186"])(n.d.)[Notes: holograph and typescript]. https://collections.library.yale.edu/catalog/17156211.