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Sjodahl, Janne M.. "A Suggested Key to Book of Mormon Geography." In An Introduction to the Study of the Book of Mormon, 406-436. Salt Lake City: Deseret News Press, 1927.

Hills, Louis Edward. New Light on American Archaeology. Independence, MO: Lambert Moon Printing Company, 1924.

Hills, Louis Edward. A Short Work on the Geography of Mexico and Central America from 2234 B. C. to 421 A. D.. Independence, MO: N.p., 1917.

Reynolds, George. "Chapter LXVIII." In The Story of the Book of Mormon, 382-394. Salt Lake City: Joseph Hyrum Parry, 1888.