000 00280nam a2200109Ia 4500
008 230515s9999||||xx |||||||||||||| ||und||
100 _aWorld Book
_943633
245 0 _aYoung Scientist Energy Conservation
260 _bWorld Book'S, Inc.
_c1991
300 _a128
942 _cBK
_pCL
999 _c156913
_d156913