000 00285nam a2200097Ia 4500
100 _aMcGraw Hill Book Company
245 _aMcGraw Hill Encyclopedia of Science and Technology Vol 7 Ibe-Lyt
260 _bMcGraw Hill Co, New York
082 _aAOaFk/N66.7/B08064
300 _app 639; 26*19
999 _c35491
_d35491