Denzin, Norman K., Sociological methods : a sourcebook / [compiled by] Norman K. Denzin. - 2d ed. - New York : McGraw-Hill, c1978. - xii, 434 p. : ill. ; 24 cm. ISBN: 0070163669 : Subjects--Topical Terms: Sociology--Methodology.Sociology--Research. Dewey Class. No.: 301.018 / DEN N78S