Plimmer, D., Parkinson, E., & Carlton, K. (1996). The environment: A primary teacher's guide. Cassell.

Plimmer, Don, Eric Parkinson, and Kevin Carlton. The Environment: A Primary Teacher's Guide. London ; New York, NY: Cassell, 1996.

Plimmer, Don, et al. The Environment: A Primary Teacher's Guide. Cassell, 1996.