APA (7th ed.) Citation

Sudlow, D., Gordon, K., Robards, J., & Williams, M. (1979). The Environment. Macdonald.

Chicago Style (17th ed.) Citation

Sudlow, David, Keith Gordon, John Robards, and Michael Williams. The Environment. London: Macdonald, 1979.

MLA (9th ed.) Citation

Sudlow, David, et al. The Environment. Macdonald, 1979.