Frankfort-Nachmias, C. (1992). Research methods in the social sciences: 576pp (4th ed.). St.Martin's Press.
Chicago-viite (17. p.)Frankfort-Nachmias, Chava. Research Methods in the Social Sciences: 576pp. 4th ed. New York: St.Martin's Press, 1992.
MLA-viite (9. p.)Frankfort-Nachmias, Chava. Research Methods in the Social Sciences: 576pp. 4th ed. St.Martin's Press, 1992.
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