00395nam a22001457a 4500008004100000020001800041040005500059080001500114100001600129245002000145246000900165260005200174300001000226650001300236230706b        |||||||| |||| 00| 0 eng d  a81 237 2205 2  aNational Science LibrarycNational Science Library  a620.91bP3  aBakshi, A.K  aऊर्जा  aUrja  aNew Delhi: b National Book Trust India, c1995  a89p.   aScience