APA (7th ed.) Citation

Barber, P. Diplomacy - the world of the Honest Spy.

Chicago Style (17th ed.) Citation

Barber, Peter. Diplomacy - the World of the Honest Spy.

MLA (9th ed.) Citation

Barber, Peter. Diplomacy - the World of the Honest Spy.

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