Singh, R. (1991). Conflict and cooperation. Anmol.
Cita Chicago (17th ed.)Singh, Ravi. Conflict and Cooperation. New Delhi: Anmol, 1991.
Cita MLA (9th ed.)Singh, Ravi. Conflict and Cooperation. Anmol, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.