Johnson, R. B. (1969). Pecos National Monument, New Mexico: Its geologic setting. U.S. G.P.O..
Chicago Style (17th ed.) CitationJohnson, Ross B. Pecos National Monument, New Mexico: Its Geologic Setting. Washington: U.S. G.P.O., 1969.
MLA (9th ed.) CitationJohnson, Ross B. Pecos National Monument, New Mexico: Its Geologic Setting. U.S. G.P.O., 1969.
Warning: These citations may not always be 100% accurate.