APA (7th ed.) Citation

Carr, E. H. (1950). A history of Soviet Russia. Macmillan.

Chicago Style (17th ed.) Citation

Carr, Edward Hallett. A History of Soviet Russia. London: Macmillan, 1950.

MLA (9th ed.) Citation

Carr, Edward Hallett. A History of Soviet Russia. Macmillan, 1950.