APA   Click to copy
Marquis, R. J., Donnelly, M. A., & Guyer, C. (1986). Aggregations of calling males of Agalychnis calcarifer Boulenger (Anura: Hylidae) in a Costa Rican lowland wet forest. Biotropica, 18, 173–175.

Chicago/Turabian   Click to copy
Marquis, Robert J, Maureen A Donnelly, and Craig Guyer. “Aggregations of Calling Males of Agalychnis Calcarifer Boulenger (Anura: Hylidae) in a Costa Rican Lowland Wet Forest.” Biotropica 18 (1986): 173–175.

MLA   Click to copy
Marquis, Robert J., et al. “Aggregations of Calling Males of Agalychnis Calcarifer Boulenger (Anura: Hylidae) in a Costa Rican Lowland Wet Forest.” Biotropica, vol. 18, JSTOR, 1986, pp. 173–75.

@article{marquis1986a,
  title = {Aggregations of calling males of Agalychnis calcarifer Boulenger (Anura: Hylidae) in a Costa Rican lowland wet forest},
  year = {1986},
  journal = {Biotropica},
  pages = {173--175},
  publisher = {JSTOR},
  volume = {18},
  author = {Marquis, Robert J and Donnelly, Maureen A and Guyer, Craig}
}