000 00329nam a2200145 4500
082 _aR 503 BOO.3
100 _a
245 _aBook of popular science, Vol.3
250 _a
260 _aNew York
_bGrolier Society
_c1976
300 _a
490 _a
650 _aPure sciences - Dictionaries & encyclopedias
942 _cBK
999 _c585161
_d585161