APA (7th ed.) Citation

Ryves, T., Easy, G., & Kent, D. (1996). Alien grasses of the british isles. Botanical Society of the British Isles.

Chicago Style (17th ed.) Citation

Ryves, T.B, G.M.S Easy, and D.H Kent. Alien Grasses of the British Isles. London: Botanical Society of the British Isles, 1996.

MLA (8th ed.) Citation

Ryves, T.B, et al. Alien Grasses of the British Isles. Botanical Society of the British Isles, 1996.