APA   Click to copy
Lill, J. T., & Marquis, R. J. (2001). The effects of leaf quality on herbivore performance and attack from natural enemies. Oecologia, 126, 418–428.

Chicago/Turabian   Click to copy
Lill, John T, and Robert J Marquis. “The Effects of Leaf Quality on Herbivore Performance and Attack from Natural Enemies.” Oecologia 126 (2001): 418–428.

MLA   Click to copy
Lill, John T., and Robert J. Marquis. “The Effects of Leaf Quality on Herbivore Performance and Attack from Natural Enemies.” Oecologia, vol. 126, Springer, 2001, pp. 418–28.

@article{lill2001a,
  title = {The effects of leaf quality on herbivore performance and attack from natural enemies},
  year = {2001},
  journal = {Oecologia},
  pages = {418--428},
  publisher = {Springer},
  volume = {126},
  author = {Lill, John T and Marquis, Robert J}
}