APA (7th ed.) Citation

Nielsen, C. (2013). Life cycle evolution: Was the eumetazoan ancestor a holopelagic, planktotrophic gastraea? BMC Evolutionary Biology, 13(1), 1. https://doi.org/10.1186/1471-2148-13-171

Chicago Style (17th ed.) Citation

Nielsen, Claus. "Life Cycle Evolution: Was the Eumetazoan Ancestor a Holopelagic, Planktotrophic Gastraea?" BMC Evolutionary Biology 13, no. 1 (2013): 1. https://doi.org/10.1186/1471-2148-13-171.

MLA (9th ed.) Citation

Nielsen, Claus. "Life Cycle Evolution: Was the Eumetazoan Ancestor a Holopelagic, Planktotrophic Gastraea?" BMC Evolutionary Biology, vol. 13, no. 1, 2013, p. 1, https://doi.org/10.1186/1471-2148-13-171.