MLA

Kilpatrick, Jack Frederick (1915-1967). Bible study notes. Box 3, folder 217. undated. https://collections.library.yale.edu/catalog/15492328.

APA, 6th edition

Kilpatrick, Jack Frederick (1915-1967). (["Box 3, folder 217"])(undated)[Bible study notes]. https://collections.library.yale.edu/catalog/15492328.