Johnson, K. R. (1983). Geology of the Gualán and southern Sierra de Las Minas Quadrangles, Guatemala. Binghamton, New York.
Chicago Style CitationJohnson, Kent Raymond. Geology of the Gualán and Southern Sierra De Las Minas Quadrangles, Guatemala. Binghamton, New York, 1983.
MLA CitationJohnson, Kent Raymond. Geology of the Gualán and Southern Sierra De Las Minas Quadrangles, Guatemala. Binghamton, New York, 1983.
Warning: These citations may not always be 100% accurate.