Παραπομπή APA

Chirot, D. (1977). Social change in the twentieth century. Harcourt brace jovanovich.

Παραπομπή Chicago Style

Chirot, Daniel. Social Change in the Twentieth Century. New york: Harcourt brace jovanovich, 1977.

Παραπομπή MLA

Chirot, Daniel. Social Change in the Twentieth Century. Harcourt brace jovanovich, 1977.