APA   Click to copy
Marquis, R. J., & Whelan, C. J. (1994). Insectivorous birds increase growth of white oak through consumption of leaf-chewing insects. Ecology, 75, 2007–2014.

Chicago/Turabian   Click to copy
Marquis, Robert J, and Christopher J Whelan. “Insectivorous Birds Increase Growth of White Oak through Consumption of Leaf-Chewing Insects.” Ecology 75 (1994): 2007–2014.

MLA   Click to copy
Marquis, Robert J., and Christopher J. Whelan. “Insectivorous Birds Increase Growth of White Oak through Consumption of Leaf-Chewing Insects.” Ecology, vol. 75, Wiley Online Library, 1994, pp. 2007–14.

@article{marquis1994a,
  title = {Insectivorous birds increase growth of white oak through consumption of leaf-chewing insects},
  year = {1994},
  journal = {Ecology},
  pages = {2007--2014},
  publisher = {Wiley Online Library},
  volume = {75},
  author = {Marquis, Robert J and Whelan, Christopher J}
}