APA (7e ed.) Bronvermelding

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.

Chicago (17e ed.) Bronvermelding

Cooke, Jean Isobel Esther, Ann Kramer, en Theodore Rowland-Entwistle. History's Timeline: A 40,000-year Chronology of World Civilization. New York: Crescent Books : Distributed by Crown Publishers, 1981.

MLA (9e ed.) Bronvermelding

Cooke, Jean Isobel Esther, et al. History's Timeline: A 40,000-year Chronology of World Civilization. Crescent Books : Distributed by Crown Publishers, 1981.