APA (7th ed.) Citation

C.A.B. International, Walters, T., & Osborne, R. (2004). Cycad classification: Concepts and recommendations. CABI Pub.. https://doi.org/10.1079/9780851997414.0000

Chicago Style (17th ed.) Citation

C.A.B. International, Terrence Walters, and Roy Osborne. Cycad Classification: Concepts and Recommendations. Wallingford, Oxon, UK ; Cambridge, MA: CABI Pub., 2004. https://doi.org/10.1079/9780851997414.0000.

MLA (9th ed.) Citation

C.A.B. International, et al. Cycad Classification: Concepts and Recommendations. CABI Pub., 2004. https://doi.org/10.1079/9780851997414.0000.