APA (7th ed.) Citation

Black, J. (1991). A system of ambition? : British foreign policy, 1660-1793 / Jeremy Black: British foreign policy, 1660-1793. Longman.

Chicago Style (17th ed.) Citation

Black, Jeremy. A System of Ambition? : British Foreign Policy, 1660-1793 / Jeremy Black: British Foreign Policy, 1660-1793. Harlow: Longman, 1991.

MLA (9th ed.) Citation

Black, Jeremy. A System of Ambition? : British Foreign Policy, 1660-1793 / Jeremy Black: British Foreign Policy, 1660-1793. Longman, 1991.

Warning: These citations may not always be 100% accurate.