Berger, J., & Wroth, L. C. (1960). Discoverers of the New World. American Heritage.
Cita Chicago Style (17a ed.)Berger, Josef, y Lawrence Counselman Wroth. Discoverers of the New World. New York: American Heritage, 1960.
Cita MLA (9a ed.)Berger, Josef, y Lawrence Counselman Wroth. Discoverers of the New World. American Heritage, 1960.
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