"Geology of Isla Desecheo, Puerto Rico, with Notes on the Great Southern Puerto Rico Fault Zone and Quaternary Stillstands of the Sea", 1972, Box: 47, Folder: 25. Cornell University Center for Aerial Photographic Studies records, 16-4-4213. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/322197 Accessed April 09, 2026.