Van Valin, Robert D., Jr., "Case Marking and the Structure of the Lahkota Clause,", undated

Van Valin, Robert D., Jr., "Case Marking and the Structure of the Lahkota Clause,", undated, Box: 4, Folder: 49. Nora England Papers, 2023-17. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/395302 Accessed September 27, 2026.