APA (7th ed.) Citation

PALMER, R., & COLTON, J. (1971). A history of the modern world.-- ed.4. Alfred A.Knopf.

Chicago Style (17th ed.) Citation

PALMER, R.R, and Joel COLTON. A History of the Modern World.-- Ed.4. New York: Alfred A.Knopf, 1971.

MLA (9th ed.) Citation

PALMER, R.R, and Joel COLTON. A History of the Modern World.-- Ed.4. Alfred A.Knopf, 1971.