000 00348nam a2200145Ia 4500
008 180626s9999 xx 000 0 und d
082 _a500 Ch436 2001
245 0 _aChildren's reference : Science technology
260 _aNew Delhi
260 _bBluebird Books
260 _cc2001
300 _a48 p
650 _aScience
650 _aTechnology
999 _c47456
_d47456