Somekh, Bridget Theory and methods in social research - 2rd ed. - Sage : London, 2011 - xxiii,344p. : ill. ; 24cm. Includes bibliographical references and index ISBN: 13: 978 1 84920 015 8 Subjects--Topical Terms: Social science - - Research - -Methodology LC Class. No.: H62.T4288 2011