APA (7th ed.) Citation

Butlin, R., Debelle, A., Kerth, C., Snook, R. R., Beukeboom, L. W., Castillo Cajas, R. F., . . . Schilthuizen, M. (2012). What do we need to know about speciation? Trends in ecology & evolution (Amsterdam), 27(1), 32-44. https://doi.org/10.1016/j.tree.2011.09.002

Chicago Style (17th ed.) Citation

Butlin, Roger, et al. "What Do We Need to Know About Speciation?" Trends in Ecology & Evolution (Amsterdam) 27, no. 1 (2012): 32-44. https://doi.org/10.1016/j.tree.2011.09.002.

MLA (9th ed.) Citation

Butlin, Roger, et al. "What Do We Need to Know About Speciation?" Trends in Ecology & Evolution (Amsterdam), vol. 27, no. 1, 2012, pp. 32-44, https://doi.org/10.1016/j.tree.2011.09.002.