Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

Kirkwood, Ralph C., e A. J. Longley. Clean Technology and the Environment. Londres: Blackie Academic & Professional, 1995.

Citatione MLA (9a ed.)

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