APA (7th ed.) Citation

Gibbs & Gyorgy. (1970). Problems in international relations (3rd ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Gibbs and Gyorgy. Problems in International Relations. 3rd ed. Englewood Cliffs, N. J: Prentice-Hall, 1970.

MLA (8th ed.) Citation

Gibbs and Gyorgy. Problems in International Relations. 3rd ed. Prentice-Hall, 1970.