1. U.S. Geol. Surv. Profess. Paper;Behrendt,1968
2. Geol Soc. Am. Mem.;Biehler,1969
3. Idaho Bur. Mines Geol. Pam.;Bonini,1963
4. Gravity surveys in the northwestern United States;Bonini;Trans. Am. Geophys. Union,1965
5. The gravitational field and the shape of intrusive bodies;Bonini,1967