APA (7th ed.) Citation

Barston, R. P. (1991). Modern diplomacy (3rd imp.). Longman.

Chicago Style (17th ed.) Citation

Barston, R. P. Modern Diplomacy. 3rd imp. London ; New York: Longman, 1991.

MLA (9th ed.) Citation

Barston, R. P. Modern Diplomacy. 3rd imp. Longman, 1991.

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