000 00428nam a2200157 a 4500
005 20140412111337.0
008 040708s19uu xx 00 eng d
020 _a0-15-317651-2
050 _aTR(GS 507
_bF844 2000
245 _aHarcourt Science.
250 _aCalifornia Edition
260 _aOrlando, Florida :
_bHarcourt, Inc,
_c2000.
300 _aR 46p.; ill.
541 _eE9331
650 _aScience
_xStudy and teaching
999 _c105046
_d105046