Quarterly.
Quarterly.
- Colorado : Colorado School of Mines, 1906-
- v. : il. ; 23 cm
- Trimestral
- Comenzó a publicarse en 1906. En biblioteca años 1925-1966.
v.53, n.1(1958) Bibliography of Graduate Theses on Geophysics in U.S. and Canadian Institution; v.53, n.3(1958) An Annotated Bibliography on Coal.
Ciencias de la tierra
v.53, n.1(1958) Bibliography of Graduate Theses on Geophysics in U.S. and Canadian Institution; v.53, n.3(1958) An Annotated Bibliography on Coal.
Ciencias de la tierra