APA (7th ed.) Citation

Kirkwood, R. C., & Longley, A. J. (1995). Clean technology and the environment. Blackie Academic & Professional.

Chicago Style (17th ed.) Citation

Kirkwood, R. C., and A. J. Longley. Clean Technology and the Environment. London: Blackie Academic & Professional, 1995.

MLA (9th ed.) Citation

Kirkwood, R. C., and A. J. Longley. Clean Technology and the Environment. Blackie Academic & Professional, 1995.