000 00263nam a2200097 4500
245 _aEarth science
_cRichard J. Ordway
100 _aPrdway, Richard J.
260 _aNew Delhi
_bAffilidted East West Press
_c1971
300 _axiv, 705p.: ill.; 24cm.
082 _a550
_bORD
999 _c4383
_d4383