(1980). Comparative regional systems: West and East Europe, North America, the Middle East and developing countries. Pergamon Press.
Chicago-Zitierstil (17. Ausg.)Comparative Regional Systems: West and East Europe, North America, the Middle East and Developing Countries. New York: Pergamon Press, 1980.
MLA-Zitierstil (9. Ausg.)Comparative Regional Systems: West and East Europe, North America, the Middle East and Developing Countries. Pergamon Press, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.