Perri Principles of methodology : research design in social science by Perri 6 and Christine Bellamy. - Los Angeles : SAGE, 2012. - viii, 325 p. : ill. ; 25 cm. Includes bibliographical references and index. ISBN: 9780857024749 (pbk.) LCCN: 2011920596 Subjects--Topical Terms: Social sciences--Research--Methodology. Dewey Class. No.: 300.72 PER