Melchiorre, E.B., 1995, Natural gamma radiation of rocks in the southern Sierra Estrella, Arizona: Compass [Sigma Gamma Epsilon], v. 71, no. 2, p. 51-57.
Melchiorre, E.B.
Compass [Sigma Gamma Epsilon], v. 71, no. 2, p. 51-57.
Radiometric Survey, Geochronology, Technique, [Montezuma granite][Sierra Estrella granite] - Middle Proterozoic,
