APA (7th ed.) Citation

Helyer, N., Brown, K., & Cattlin, N. D. (2003). A colour handbook of biological control in plant protection. Royal Horticultural Society : Manson.

Chicago Style (17th ed.) Citation

Helyer, Neil, Kevin Brown, and Nigel D. Cattlin. A Colour Handbook of Biological Control in Plant Protection. London: Royal Horticultural Society : Manson, 2003.

MLA (9th ed.) Citation

Helyer, Neil, et al. A Colour Handbook of Biological Control in Plant Protection. Royal Horticultural Society : Manson, 2003.