APA (7th ed.) Citation

Watson, L., & Dallwitz, M. J. (1992). The grass genera of the world. CAB International.

Chicago Style (17th ed.) Citation

Watson, Leslie, and M. J. Dallwitz. The Grass Genera of the World. Wallingford, Oxon, UK: CAB International, 1992.

MLA (9th ed.) Citation

Watson, Leslie, and M. J. Dallwitz. The Grass Genera of the World. CAB International, 1992.