Citazione Stile APA (7a Edizione)

(1996). Project appraisal and valuation of the environment: General principles and six case-studies in developing countries / Peter Abelson.

Citazione stile Chigago Style (17a edizione)

Project Appraisal and Valuation of the Environment: General Principles and Six Case-studies in Developing Countries / Peter Abelson. 1996.

Citatione MLA (9a ed.)

Project Appraisal and Valuation of the Environment: General Principles and Six Case-studies in Developing Countries / Peter Abelson. 1996.