APA

Hazard J., . (1964). The soviet system of government. Estados Unidos: University of CHicago.

Chicago

Hazard John, . 1964. The soviet system of government. Estados Unidos: University of CHicago.

Harvard

Hazard J., . (1964). The soviet system of government. Estados Unidos: University of CHicago.

MLA

Hazard John, . The soviet system of government. Estados Unidos: University of CHicago. 1964.