"An Analysis of the Initialed Text of the North American Free Trade Agreement," Prepared by Colleen S. Morton and Joseph A. Greenwald, 15 October 1992.

"An Analysis of the Initialed Text of the North American Free Trade Agreement," Prepared by Colleen S. Morton and Joseph A. Greenwald, 15 October 1992., Box: 11, Folder: 6. Rodman C. Rockefeller Records of the Mexico-U.S. Business Committee, 2005-09. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/376493 Accessed September 26, 2026.