Παραπομπή σε μορφή APA (7η εκδ.)

Gulick, E. V. (1967). Europe's classical balance of power: A case history of the theory and practice of one of the great concepts of European statecraft. Norton.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gulick, Edward Vose. Europe's Classical Balance of Power: A Case History of the Theory and Practice of One of the Great Concepts of European Statecraft. New York: Norton, 1967.

Παραπομπή σε μορφή MLA (9th εκδ.)

Gulick, Edward Vose. Europe's Classical Balance of Power: A Case History of the Theory and Practice of One of the Great Concepts of European Statecraft. Norton, 1967.