1. Zircons from the Animas stock and associated rocks, New Mexico;Alper;Econ. Geol.,1957
2. The dynamics of the formation of cone sheets, ring dykes, and caldron subsidences;Anderson;R. Soc. Edinburgh Proc.,1936
3. New K-Ar ages of volcanic rocks from Catron and Grant Counties, N. Mex;Bikerman;Isochron/ West,1972