Neuman, W. Lawrence Social research methods : Qualitative and quantitative approaches / W. Lawrence Nueman. - 6th ed. - Boston : Pearson, c2011. - vii, 592 p. : ill. ; 24 cm. includes bibliographical references and index ISBN: 9780205465316 Subjects--Topical Terms: Social research Dewey Class. No.: 300.72 / NEU