Ojakangas, Richard W.
The earth, past & present / Richard W. Ojakangas, David G. Darby. - New York : McGraw-Hill, c1976. - x, 260 p. : ill. ; 23 cm. - McGraw-Hill earth science paperback series .
Includes index.
0070476764
75045172
Geology.
QE28 / .O37
550 / OJE
The earth, past & present / Richard W. Ojakangas, David G. Darby. - New York : McGraw-Hill, c1976. - x, 260 p. : ill. ; 23 cm. - McGraw-Hill earth science paperback series .
Includes index.
0070476764
75045172
Geology.
QE28 / .O37
550 / OJE