Sayer, R. A. (1992). Method in social science: A realist approach (2nd ed.). Routledge.
Chicago (17e ed.) BronvermeldingSayer, R. Andrew. Method in Social Science: A Realist Approach. 2nd ed. London ; New York: Routledge, 1992.
MLA (9e ed.) BronvermeldingSayer, R. Andrew. Method in Social Science: A Realist Approach. 2nd ed. Routledge, 1992.
Let op: Deze citaties zijn niet altijd 100% accuraat.