MLA

Dodson, Owen, 1914-1983. One Sunday Mawnin', the old man screamed!... I'ma Build Me A Mountain So's My Children Can Dream (play), typescript. Box 7, folder 136. undated. https://collections.library.yale.edu/catalog/16817776.

APA, 6th edition

Dodson, Owen, 1914-1983. (["Box 7, folder 136"])(undated)[One Sunday Mawnin', the old man screamed!... I'ma Build Me A Mountain So's My Children Can Dream (play), typescript]. https://collections.library.yale.edu/catalog/16817776.