APA
Colwell, R. K., & Coddington, J. A. (1994). Estimating terrestrial biodiversity through extrapolation. Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 345, 101–118.
Chicago/Turabian
Colwell, Robert K, and Jonathan A Coddington. “Estimating Terrestrial Biodiversity through Extrapolation.” Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 345 (1994): 101–118.
MLA
Colwell, Robert K., and Jonathan A. Coddington. “Estimating Terrestrial Biodiversity through Extrapolation.” Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, vol. 345, The Royal Society London, 1994, pp. 101–18.