Herb Ettel Collected Papers, CDG-A-Herb-Ettel, Box: 1. Swarthmore College Peace Collection.
Herb Ettel Collected Papers, CDG-A-Herb-Ettel, Box: 1. Swarthmore College Peace Collection. https://archives.tricolib.brynmawr.edu//repositories/8/resources/11524 Accessed October 30, 2024.
