Owen, R., & Sutcliffe, B. (1972). Studies in the theory of imperialism. Longman.
Chicago-čujuhus (17. p.)Owen, Roger, juo Bob Sutcliffe. Studies in the Theory of Imperialism. Harlow: Longman, 1972.
MLA-čujuhus (9. p.)Owen, Roger, juo Bob Sutcliffe. Studies in the Theory of Imperialism. Longman, 1972.
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