00426nam a22001457a 4500008004100000020001800041050002000059082002800079100002000107245004500127250001100172260003100183300003200214440003400246161103b        xxu||||| |||| 00| 0 eng d  a9780787654399  aQ 121 .U18 2001  22nd edaQ 121 .U18 2001  aNagel Robd2001  aU.X.L Encyclopedia of SciencecRob Nagel  a2nd ed  aNew YorkbGale Groupc2001  axxix, 1455pbincludes index  aU.X.L Encyclopedia of Science