APA (7th ed.) Citation

Clayton, W. D., & Renvoize, S. A. (1986). Genera graminum: Grasses of the world. H.M.S.O..

Chicago Style (17th ed.) Citation

Clayton, W. D., and S. A. Renvoize. Genera Graminum: Grasses of the World. London: H.M.S.O., 1986.

MLA (9th ed.) Citation

Clayton, W. D., and S. A. Renvoize. Genera Graminum: Grasses of the World. H.M.S.O., 1986.