Bailey, K. D. (1987). Methods of social research (Third edition.). The Free Press.
Cita Chicago (17th ed.)Bailey, Kenneth D. Methods of Social Research. Third edition. New York: The Free Press, 1987.
Cita MLA (9th ed.)Bailey, Kenneth D. Methods of Social Research. Third edition. The Free Press, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.