APA (7th ed.) Citation

Barber, J. P. (1980). Britain's place in the world. British journal of international studies, 6(2), 93.

Chicago Style (17th ed.) Citation

Barber, James P. "Britain's Place in the World." British Journal of International Studies 6, no. 2 (1980): 93.

MLA (8th ed.) Citation

Barber, James P. "Britain's Place in the World." British Journal of International Studies, vol. 6, no. 2, 1980, p. 93.