McLellan, D. S., Olson, W. C., & Sondermann, F. A. (1977). The Theory and practice of international relations (Ed.4.).

McLellan, David S., William C. Olson, and Fred A. Sondermann. The Theory and Practice of International Relations. Ed.4. New Delhi, Prentice hall of India Pvt Ltd, 1977.

McLellan, David S., et al. The Theory and Practice of International Relations. Ed.4. 1977.