Oppenheim, A.N. Questionnaire design, interviewing, and attitude measurement / A.N.Oppenheim. - London : Pinter, 1999. - 303 p. 24 cm. ISBN: 1855670445 Subjects--Topical Terms: Social sciences--ResearchQuestionnairesInterviewing in sociology Dewey Class. No.: 300.72 / OPP