Pierre Teilhard de Chardin - Janetta Warre Collection, GTM-110506, Box: 1, Folder: 1-18. Georgetown University Manuscripts.
Pierre Teilhard de Chardin - Janetta Warre Collection, GTM-110506, Box: 1, Folder: 1-18. Georgetown University Manuscripts. https://findingaids.library.georgetown.edu/repositories/15/resources/12251 Accessed September 27, 2023.
