APA (7th ed.) Citation

Carr, E. H. (1969). The interregnum: 1923-1924: A history of Soviet Russia. Penguin Books.

Chicago Style (17th ed.) Citation

Carr, Edward Hallett. The Interregnum: 1923-1924: A History of Soviet Russia. Penguin Books, 1969.

MLA (9th ed.) Citation

Carr, Edward Hallett. The Interregnum: 1923-1924: A History of Soviet Russia. Penguin Books, 1969.

Warning: These citations may not always be 100% accurate.