000 00289nam a2200097Ia 4500
100 _aMcGraw Hill Book Company
245 _aMcGraw Hill Encyclopedia of Science and Technology Vol 13 Spir -Tou
260 _bMcGraw Hill Co, New York
082 _aAOaFk/N66.13/B08070
300 _app 619; 26*19
999 _c41539
_d41539