000 00507nam a2200205Ia 4500
008 230524s9999 xx 000 0 und d
020 _a0079115047
040 _cUDSM
050 _aREF Q121.M3 2007
245 0 _aMcGraw Hill encyclopedia of science and technology.
260 _aNew York
260 _bMcGraw-Hill
260 _c1997
300 _a743p.
300 _c29cm.
650 _aScience-Encyclopedias
700 _aill.
942 _2Library of Congress Classification
942 _cBook
999 _c93085
_d93085