Norman, William M., "Advancement Rules and Syntactic Change: The Loss of Instrumental Voice in Mayan,", 1978

Norman, William M., "Advancement Rules and Syntactic Change: The Loss of Instrumental Voice in Mayan,", 1978, Box: 3, Folder: 64. Nora England Papers, 2023-17. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/395238 Accessed September 26, 2026.