APA
Wren M. C., . (1958). The course of Russian history. New York: Macmillan Company.
Chicago
Wren Melvin C, . 1958. The course of Russian history. New York: Macmillan Company.
Harvard
Wren M. C., . (1958). The course of Russian history. New York: Macmillan Company.
MLA
Wren Melvin C, . The course of Russian history. New York: Macmillan Company. 1958.
