Cita APA (7a ed.)

Gargiullo, M. B., Magnuson, B. L., & Kimball, L. D. (2008). A field guide to plants of Costa Rica. Oxford University Press.

Cita Chicago Style (17a ed.)

Gargiullo, Margaret B., Barbara L. Magnuson, y Larry D. Kimball. A Field Guide to Plants of Costa Rica. Oxford ; New York: Oxford University Press, 2008.

Cita MLA (9a ed.)

Gargiullo, Margaret B., et al. A Field Guide to Plants of Costa Rica. Oxford University Press, 2008.