Gravity, magnetic, and seismic studies of the Silver Cliff and Rosita Hills volcanic area, Colorado /

Autor Kleinkopf, M. Dean 1926-, Peterson, Donald L., 1928-, Mattick, Robert E.
Vydáno 1979

Geophysical studies in the Yuma area, Arizona and California,

Autor Mattick, Robert E., Olmsted, F. H. 1921-2015, Zohdy, Adel A. R., 1935-2014
Vydáno 1973