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Filters: Author is Christensen, Ross T. and Keyword is Usumacinta River [Clear All Filters]
U.A.S. Newsletter, no. 34 (April 30, 1956), Edited by Ross T. Christensen and Alfred L. Bush. Vol. 34. Provo, UT: University Archaeological Society, Brigham Young University, 1956.
U.A.S. Newsletter, no. 32 (January 28, 1956), Edited by Ross T. Christensen and Roberta Hansen. Vol. 32. Provo, UT: University Archaeological Society, Brigham Young University, 1956.
U.A.S. Newsletter, no. 22 (August 23, 1954) In U.A.S. Newsletter,, Edited by Ross T. Christensen. Vol. 22. Provo, UT: University Archaeological Society, Brigham Young University, 1954.