Stearns, P. N. (1987). World History: Patterns of change and continuity. Harper & Row.
Cita Chicago (17th ed.)Stearns, Peter N. World History: Patterns of Change and Continuity. New York: Harper & Row, 1987.
Cita MLA (9th ed.)Stearns, Peter N. World History: Patterns of Change and Continuity. Harper & Row, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.