Phillips, B. S. (1976). Social research: Strategy and tactics (3rd ed.). Macmillan.
Cita Chicago (17th ed.)Phillips, Bernard S. Social Research: Strategy and Tactics. 3rd ed. New York: Macmillan, 1976.
Cita MLA (9th ed.)Phillips, Bernard S. Social Research: Strategy and Tactics. 3rd ed. Macmillan, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.