00306nam a2200121Ia 4500008004100000020001800041082001000059100002900069245003300098260001200131260003200143260000900175230118s9999||||xx |||||||||||||| ||und||  a81-239-0110-0  bMAH/T  agirija bhusanbmahapatra 0atextbook of physical geology  achennai  bcbs publishers&distributors  c1994