Cita APA (7th ed.)
McDonagh, E. C., & Simpson, J. E. (1969). Social problems: Persistent challenges. (2nd ed.). Holt, Rinehart and Winston.
Cita Chicago (17th ed.)
McDonagh, Edward C., i Jon E. Simpson. Social Problems: Persistent Challenges. 2nd ed. New York: Holt, Rinehart and Winston, 1969.
Cita MLA (9th ed.)
McDonagh, Edward C., i Jon E. Simpson. Social Problems: Persistent Challenges. 2nd ed. Holt, Rinehart and Winston, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.