00334nam a2200121Ia 4500008004100000041000800041082001400049100002600063245003100089250001200120260005300132650002700185230711s9999||||xx |||||||||||||| ||und||  aENG  a624bBH-T  aBhattacharya,Amitabha 0aTechnology of gear cutting  a2nd Ed.  c1978aNew DelhibThe Indian Instuite of Enginers  aMechanical Engineering