Programs and clippings
MLA
Wilder, Thornton, 1897-1975. Programs and clippings. Box 70, folder 1906-1907. 1962, n.d.. https://collections.library.yale.edu/catalog/2054116.
APA, 6th edition
Wilder, Thornton, 1897-1975. (["Box 70, folder 1906-1907"])(1962, n.d.)[Programs and clippings]. https://collections.library.yale.edu/catalog/2054116.