APA (7th ed.) Citation

Carr, E. H. (1972). Socialism in one country 1924-1926. Penguin Book.

Chicago Style (17th ed.) Citation

Carr, Edward Hallett. Socialism in One Country 1924-1926. Harmondsworth: Penguin Book, 1972.

MLA (9th ed.) Citation

Carr, Edward Hallett. Socialism in One Country 1924-1926. Penguin Book, 1972.