Graham, G. S. (1972). Tides of empire: Discursions on the expansion of Britain overseas. McGill-Queen's University Press.
Chicago-viite (17. p.)Graham, Gerald Sandford. Tides of Empire: Discursions on the Expansion of Britain Overseas. Montreal: McGill-Queen's University Press, 1972.
MLA-viite (8. p.)Graham, Gerald Sandford. Tides of Empire: Discursions on the Expansion of Britain Overseas. McGill-Queen's University Press, 1972.
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