Northouse, Peter G Leadership : Theory and Practice - 6th ed. - New Delhi : Sage , 2014 . - 485 p. : 18 cm L11 Trait Approach Skills Approach Style Approach Situational Approach ISBN: 9788132110071 Subjects--Topical Terms: Leadership Subjects--Index Terms: Leader Skills Dewey Class. No.: 658.4 / NOR