MLA

Ryan, Michael, and Richard Prentice. Social Trends In the Soviet Union From 1950. New York: St. Martin's Press, 1987.

APA

Ryan, M., & Prentice, R. (1987). Social trends in the Soviet Union from 1950. New York: St. Martin's Press.

Chicago

Ryan, Michael, and Richard Prentice. Social Trends In the Soviet Union From 1950. New York: St. Martin's Press, 1987.