00273nam a2200109Ia 4500008004100000041000800041082001200049100001500061245004600076260003300122300000800155211209s1967    xx            000 0 und d  aeng  aGUP/KAN  aGUPTHA K N  aWORKSHOP TECHNOLOGY, THEORY AND PRACTICE   aNEW DELHIbNEW HEYERTSc1967  a474