APA

Gripp R. C., . (1973). The political system of communism. New York: Dodd, Mead.

Chicago

Gripp Richard C, . 1973. The political system of communism. New York: Dodd, Mead.

Harvard

Gripp R. C., . (1973). The political system of communism. New York: Dodd, Mead.

MLA

Gripp Richard C, . The political system of communism. New York: Dodd, Mead. 1973.