Gilbert, F., & Large, D. C. (1991). The end of the European era: 1890 to the present (4th ed.). New York: Norton.
Чикагска система за цитиранеGilbert, Felix, и David Clay Large. The End of the European Era: 1890 to the Present. 4th ed. New York: Norton, 1991.
MLA формат за цитиранеGilbert, Felix, и David Clay Large. The End of the European Era: 1890 to the Present. 4th ed. New York: Norton, 1991.
Внимание: Тези цитати може да не са 100% точни.