APA (7th ed.) Citation

Owen, E. R. J., & Sutcliffe, R. B. (1972). Studies in the theory of imperialism. Longman.

Chicago Style (17th ed.) Citation

Owen, Edward Roger John, and Robert B. Sutcliffe. Studies in the Theory of Imperialism. [London]: Longman, 1972.

MLA (9th ed.) Citation

Owen, Edward Roger John, and Robert B. Sutcliffe. Studies in the Theory of Imperialism. Longman, 1972.