APA (7th ed.) Citation

Eck, L. v. (1981). The USSR, a dictatorship or a democracy? Progress Publishers.

Chicago Style (17th ed.) Citation

Eck, Ludo van. The USSR, a Dictatorship or a Democracy? Moscow: Progress Publishers, 1981.

MLA (9th ed.) Citation

Eck, Ludo van. The USSR, a Dictatorship or a Democracy? Progress Publishers, 1981.

Warning: These citations may not always be 100% accurate.