Wiesner, M. E., Ruff, J. R., & Wheeler, W. B. (1993). Discovering the Western past: A look at the evidence (2nd ed.). Boston: Houghton Mifflin.
Trích dẫn kiểu ChicagoWiesner, Merry E., Julius R. Ruff, và William Bruce Wheeler. Discovering the Western Past: A Look At the Evidence. 2nd ed. Boston: Houghton Mifflin, 1993.
Deismireacht MLAWiesner, Merry E., Julius R. Ruff, và William Bruce Wheeler. Discovering the Western Past: A Look At the Evidence. 2nd ed. Boston: Houghton Mifflin, 1993.
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