APA (7th ed.) Citation

Wakelin, J. (1965). The roots of diplomacy: How to study inter-state relations. Hutchinson.

Chicago Style (17th ed.) Citation

Wakelin, John. The Roots of Diplomacy: How to Study Inter-state Relations. London: Hutchinson, 1965.

MLA (8th ed.) Citation

Wakelin, John. The Roots of Diplomacy: How to Study Inter-state Relations. Hutchinson, 1965.