00462nam a2200157 a 450000500170000008200160001710000210003324500510005426000400010530000210014563000250016696400230019199700120021499900170022695200610024320251203090704.0  a503.21bENC  aChhatwal,G.R ed.  aEncyclopedia of scientific and technical terms  aNew DelhibAnmol Publicationsc1987  a247p.c20cm.bHB  aScience-Dictionaries  bENGLISHcdefg_  a18831 C  c16435d16435  00104070aPUbPUd1998-08-20l0o503.21 ENCp18831yBK