APA način citiranja

Gruber, H. (1967). International communism in the era of Lenin. New York: Fawcett Publications, Inc.

Čikaški stil citiranja

Gruber, Helmut. International Communism in the Era of Lenin. New York: Fawcett Publications, Inc, 1967.

MLA način citiranja

Gruber, Helmut. International Communism in the Era of Lenin. New York: Fawcett Publications, Inc, 1967.

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