Frankfort-Nachmias, C., Nachmias, D., & DeWaard, J. (2015). Research methods in the social sciences (Eighth edition.). Worth Publishers, a Macmillan Education Company.
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Cita Chicago (17th ed.)
Frankfort-Nachmias, Chava, David Nachmias, i Jack DeWaard. Research Methods in the Social Sciences. Eighth edition. New York, NY: Worth Publishers, a Macmillan Education Company, 2015.
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Cita MLA (9th ed.)
Frankfort-Nachmias, Chava, et al. Research Methods in the Social Sciences. Eighth edition. Worth Publishers, a Macmillan Education Company, 2015.
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