Williams, Reverend James. 1932. "Languages of the Makuchi Indians." Anthropos.

Whorf, Benjamin Lee. 1935. "The Hopi Language." 48: University of Chicago Library.

Wexler, P. 1967. "Beginning Aymara. A Course For English Speakers." Peace Corps Training Programs, University of Washington.

West, Birdie. 1980. "Gramática Popular Del Tucano." Summer Institute of Linguistics.

Weltfish, Gene. 1937. "Caddoan Texts." G. E. Stechert and Company.

Weltfish, Gene. 1936. "The Vision Story of Fox Bay." In International Journal of American Linguistics, 39: 44-75.

Watters, James K. 1988. "Topics in Tepehua Grammar."

Watters, David E. 1973. "Clause Patterns in Kham." In Clause, sentence, and discourse patterns in selected languages of Nepal. Volume 1: General approach, edited by Austin Hale. 39-202. Summer Institute of Linguistics.

Waterhouse, Viola. 1967. "Huamelultec Chontal." In Handbook of Middle American Indians, edited by Robert Wauchope. 349-367. University of Texas Press.

Waterhouse, Viola. 1949. "Oaxaca Chontal: Sentence Types and Text Analysis." In México Antiguo, 7: 229-314.