MLA

Barrie, J. M. (James Matthew), 1860-1937. Typescript, Act I. Box 42, folder 918. 1905. https://collections.library.yale.edu/catalog/32313750.

APA, 6th edition

Barrie, J. M. (James Matthew), 1860-1937. (["Box 42, folder 918"])(1905)[Typescript, Act I]. https://collections.library.yale.edu/catalog/32313750.