Cite

Hymn, "no. 41"

MLA

Kilpatrick, Jack Frederick (1915-1967). Hymn, "no. 41". Box 13, folder 1171. undated. https://collections.library.yale.edu/catalog/15530545.

APA, 6th edition

Kilpatrick, Jack Frederick (1915-1967). (["Box 13, folder 1171"])(undated)[Hymn, "no. 41"]. https://collections.library.yale.edu/catalog/15530545.