Method in social science : a realist approach / Andrew Sayer. Sayer, R. Andrew. Social sciences Methodology. H61 .S353 1992 300 20 SAM Includes bibliographical references (p. [299]-309) and index. London ; New York : Routledge, 1992. 1992. 1992 Text xi, 313 p. : http://www.loc.gov/catdir/enhancements/fy0648/92195972-d.html http://www.loc.gov/catdir/enhancements/fy1011/92195972-b.html eng