Παραπομπή APA

Hall, R. A. (1971). Yearbook of international organizations (13th ed.). Brussels, Belgium: Union of International Associations.

Παραπομπή Chicago Style

Hall, R. A. Yearbook of International Organizations. 13th ed. Brussels, Belgium: Union of International Associations, 1971.

Παραπομπή MLA

Hall, R. A. Yearbook of International Organizations. 13th ed. Brussels, Belgium: Union of International Associations, 1971.

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