NAVAJO The Excavation and Repair of Betatakin

CUMMINGS, BYRON.
1910. The ancient inhabitants of the San Juan valley. Bulletin of the University of Utah, 2d archaeological number, vol. 3, No. 3, pt. 2. Salt Lake City, 1910.

1910a. The great natural bridges of Utah. National Geographic Magazine, vol. 21, No. 2. Washington, 1910.

1915. Kivas of the San Juan drainage. American Anthropologist, new ser., vol. 17, No, 2. Lancaster, 1915.

FEWKES, J. W.
1911. Preliminary report on a visit to the Navaho National Monument, Arizona. Bulletin 50, Bureau of American Ethnology. Washington, 1911.

GREGORY, H. E.
1916. The Navaho Country. A geographic and hydrographic reconnaissance of parts of Arizona, New Mexico, and Utah, Water-supply Paper 380. U. S. Geological Survey, Interior Department, Washington, 1916.

JUDD, NEIL M.
1918. Archeological work in Arizona and Utah. Smithsonian Miscellaneous Collections, vol. 68, No. 12, pp. 74-83. Washington, 1918.

1927. The discovery of Rainbow Bridge. National Park Bulletin, No. 54. Washington, 1927.

KIDDER, A. V.
1917. Prehistoric cultures of the San Juan drainage, Proceedings of the 19th International Congress of Americanists, 1915. Washington, 1917.

1924. An introduction to the study of southwestern archaeology. Published for the Department of Archaeology, Phillips Academy, Andover, Mass., by the Yale University Press. New Haven, 1924.

1927. Southwestern archaeological conference. Science, vol. 66, No, 1716, pp. 489-491. Lancaster, 1927.

KIDDER, A. V., and GUERNSEY, S. J.
1919. Archeological explorations in northeastern Arizona, Bulletin 65, Bureau of American Ethnology. Washington, 1919.

1921. Basket-maker caves of northeastern Arizona. Papers of the Peabody Museum of American Archaeology and Ethnology, Harvard University, vol. 8, No, 2. Cambridge, 1921.

1921a. Peabody Museum Arizona exploration, 1920. Proceedings of the National Academy of Sciences, vol. 7, No. 3, pp. 69-71. Easton, Pa., 1921.

MORRIS, EARL H.
1921. Chronology of the San Juan area. Proceedings of the National Academy of Sciences, vol. 7, No. 1, pp. 18-22. Easton, Pa., 1921.

PRUDDEN, T. MITCHELL.
1903. The prehistoric ruins of the San Juan watershed in Utah, Arizona, Colorado, and New Mexico. American Anthropologist, new ser., vol. 5, No. 2. Lancaster, 1903.