000 00280nam a2200109Ia 4500
008 220505s1997 xx 000 0 und d
041 _aeng
082 _a551.7/SAC
245 _aKnow about earth and space
260 _aNew Delhi
_bBlue Bird Books
_c1997
650 _aGEOLOGY
_9659638
999 _c457895
_d457895