00266nam a2200109Ia 4500008004100000041000800041082002400049100001400073245003500087260002600122300000800148211209s1978    xx            000 0 und d  aeng  a621.815 GUP N78 GUP  aGUPTA R B  aMECHANICAL ENGINEERING DESIGN   bSATYA PRAKASHANc1978  a768