Maxwell, Joseph Alex 1941- Qualitative research design : an interactive approach / - 3rd ed. - London Sage publications 2013 - xi, 218 p. : ill. 23 cm. - Applied social research methods v. 41 . Includes bibliographical references ISBN: 9781412981194 LCCN: Subjects--Topical Terms: Research--Methodology LC Class. No.: Q180.55 / .M4M39 2013