00289nam a2200121Ia 4500008004100000041001200041082002000053100002400073245002800097250001200125260002200137300000800159231217s9999    xx            000 0 und d  aEnglish  a604.2  GOP.1;25  aGopalakrishna, K R. 0aEngineering drawing V.1  a6th ed.  c1993bSudha Publ.  a312