Asopa, D. N. (1980). Peace and detente: Foreign policy of the Social Democratic Party of Germany. Sopan Pub. House.
Chicago-viite (17. p.)Asopa, D. N. Peace and Detente: Foreign Policy of the Social Democratic Party of Germany. New Delhi: Sopan Pub. House, 1980.
MLA-viite (8. p.)Asopa, D. N. Peace and Detente: Foreign Policy of the Social Democratic Party of Germany. Sopan Pub. House, 1980.
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