Denzin, Norman K The Sage handbook of qualitative research Handbook of qualitative research - 4th ed. - Thousand Oaks Sage c2011 - xvi, 766 p. ; 29 cm. ISBN: 9781412974172 (HB) Subjects--Topical Terms: Qualitative ResearchSocial sciences - Research Dewey Class. No.: 001.42 , A1/1