Cooke, J. I. E., Kramer, A., & Rowland-Entwistle, T. (1981). History's timeline: A 40,000-year chronology of world civilization. Crescent Books Distributed by Crown Publishers.
Citace podle Chicago (17th ed.)Cooke, Jean Isobel Esther, Ann Kramer, a Theodore Rowland-Entwistle. History's Timeline: A 40,000-year Chronology of World Civilization. New York: Crescent Books Distributed by Crown Publishers, 1981.
Citace podle MLA (9th ed.)Cooke, Jean Isobel Esther, et al. History's Timeline: A 40,000-year Chronology of World Civilization. Crescent Books Distributed by Crown Publishers, 1981.
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