Cita APA (7th ed.)
Mitchell, G. D. (1970). Sociology: The study of social systems (2nd ed.). University Tutorial P..
Cita Chicago (17th ed.)
Mitchell, G. Duncan. Sociology: The Study of Social Systems. 2nd ed. London: University Tutorial P., 1970.
Cita MLA (9th ed.)
Mitchell, G. Duncan. Sociology: The Study of Social Systems. 2nd ed. University Tutorial P., 1970.
Atenció: Aquestes cites poden no estar 100% correctes.