00509nam a2200157Ia 4500003000900000008004100009020001800050040001600068080001500084100001900099245012700118260003900245300001400284650004100298650001200339IN-BaIIA211028s9999    xx            000 0 eng d  a81-220-0260-9  cIIA Library  a5"20"bSAL  aSalwi, Dilip M 0aScience in 21st centuryba glimpse of science and technologycDilip M. Salwi                                                aNew DelhibKonark Publishersc1993  axvii,298p  aAstronomy and Astrophysics Thesaurus  aScience