Cita APA (7a ed.)
Ekstig, B. (2010). Biological and Cultural Evolution in a Common Universal Trend of Increasing Complexity. World Futures: The Journal of General Evolution, 66(6), 435-449.
Cita Chicago Style (17a ed.)
Ekstig, Börje. "Biological and Cultural Evolution in a Common Universal Trend of Increasing Complexity." World Futures: The Journal of General Evolution 66, no. 6 (2010): 435-449.
Cita MLA (9a ed.)
Ekstig, Börje. "Biological and Cultural Evolution in a Common Universal Trend of Increasing Complexity." World Futures: The Journal of General Evolution, vol. 66, no. 6, 2010, pp. 435-449.
Precaución: Estas citas no son 100% exactas.