00430nam a2200157Ia 450000100060000000800410000602000180004704000130006508200190007810000230009724500760012026000460019630000110024254600070025365000120026051263140502s9999    xx            000 0 und d  a9789698674106  cPK-LaUMT  aG 671.2bPER-M  aPervaiz Habibullah  aMorphology of exogenous blowholes in steel castingscPervaiz Habibullah  aLahore,Pakistan:bSalman Art Press,c1985  a139 p.  aEN  aFoundry