00422nam a2200157Ia 4500003000400000005001700004008004100021040000900062082001900071100002000090245001200110260005900122300001000181630001800191650005500209OSt20220317132036.0211109s9999||||xx |||||||||||||| ||und||  csbcl  a629.225bKON-T  aKonrad, Joachim 0aTractor  bState Institute of LanguagesaThiruvananthapuramc1973  a244p.  xgeneral stack  atechnologyvother branches of engineeringGeneralia