APA (7th ed.) Citation

Owen, R., & Sutcliffe, R. B. (1977). Studies in the theory of imperialism (4. impr.). Longman.

Chicago Style (17th ed.) Citation

Owen, Roger, and Robert B. Sutcliffe. Studies in the Theory of Imperialism. 4. impr. London: Longman, 1977.

MLA (9th ed.) Citation

Owen, Roger, and Robert B. Sutcliffe. Studies in the Theory of Imperialism. 4. impr. Longman, 1977.