APA Style

Abelson, P. (1996). Project Appraisal and Valuation of the Environment : General Principles and Six Case-Studies in Developing Countries . London: Macmillan Press.

MLA Style

Abelson, Peter. "Project Appraisal and Valuation of the Environment : General Principles and Six Case-Studies in Developing Countries". London: Macmillan Press, 1996. Books.