MLA

Stein, Gertrude, 1874-1946. "Communiqué de son eminence le Cardinal Gerlier, Archeveque de Lyon," typescript carbon. Box 139, folder 3276. 1942 Sep 6. https://collections.library.yale.edu/catalog/10267815.

APA, 6th edition

Stein, Gertrude, 1874-1946. (["Box 139, folder 3276"])(1942 Sep 6)["Communiqué de son eminence le Cardinal Gerlier, Archeveque de Lyon," typescript carbon]. https://collections.library.yale.edu/catalog/10267815.