Niazi Najeeb Ullah Khan. AUSTEMERING HEAT TREATMENT OF AISI 4340 STEEL AND COMPARATIVE ANALYSIS OF VARIOUS PHYSICAL PROPERTIES AT DIFFERENT PARAMETERS / Najeeb Ullah Khan Niazi. - Islamabad : PNEC - NUST, 2014. - 77 p. : ill. ; 30cm. ISBN: Subjects--Topical Terms: MS-Manufacturing Engineering and Management Dewey Class. No.: 200