APA
Sumner B. H., . (1949). A short history of Russia. New York: Harcourt, Brace and Company.
Chicago
Sumner Benedict Humphrey, . 1949. A short history of Russia. New York: Harcourt, Brace and Company.
Harvard
Sumner B. H., . (1949). A short history of Russia. New York: Harcourt, Brace and Company.
MLA
Sumner Benedict Humphrey, . A short history of Russia. New York: Harcourt, Brace and Company. 1949.
