Kletz, Trevor Hazop and hazan : identifying and assessing process industry hazards / Trevor Kletz. - 3rd ed. - Warwickshire : Institute of Chemical Engineers, 1992. - viii, 150 p. : ill. ; 24 cm. Includes index. Includes bibliographical references. ISBN: 1560322764 (pbk. ) 0852952856 (hbk. ) Subjects--Topical Terms: Chemical engineering--Safety measures.