APA (7th ed.) Citation

Pollard, E., & Yates, T. (1993). Monitoring butterflies for ecology conservation: The British butterfly monitoring scheme. Chapman and Hall.

Chicago Style (17th ed.) Citation

Pollard, E., and T.J Yates. Monitoring Butterflies for Ecology Conservation: The British Butterfly Monitoring Scheme. London: Chapman and Hall, 1993.

MLA (9th ed.) Citation

Pollard, E., and T.J Yates. Monitoring Butterflies for Ecology Conservation: The British Butterfly Monitoring Scheme. Chapman and Hall, 1993.