00434nam a2200109Ia 4500008004100000082001700041245012200058250001200180260003500192300000800227650008900235140224s9999    xx            000 0 und d  a5+6(03) M2.9  aMc Graw-Hill Encyclopedia of Science & Technology: An international reference work in fifteen volumes including index  a5th ed.  aNew YorkbMc Graw-Hillcc 1982  av.9  aScience-Encyclopaedia,Technology-Encyclopedia,Encyclopedia of Science and Technology