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Dyfyniad Arddull ChicagoShukla, K S,Ed. Collective Violence: Genesis and Response. New Delhi: IIPA, 1988.
Dyfyniad MLAShukla, K S,Ed. Collective Violence: Genesis and Response. IIPA, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.