00302nam a2200109Ia 4500008004100000041000800041082002800049100001600077245005100093260004000144300000800184211209s1993    xx            000 0 und d  aeng  a620.112 KHA N93 KHA/LAL  aKHANNA, O P  aTEXT BOOK OF MATERIALS SCIENCE AND METALLURGY   aNEW DELHIbDHANPAT RAI & SONSc1993  a750