APA (7th ed.) Citation

Folmer, H., & Ierland, E. v. (1989). Valuation methods and policy making in environmental economics. Elsevier.

Chicago Style (17th ed.) Citation

Folmer, H., and E. van Ierland. Valuation Methods and Policy Making in Environmental Economics. Amsterdam ; New York: Elsevier, 1989.

MLA (9th ed.) Citation

Folmer, H., and E. van Ierland. Valuation Methods and Policy Making in Environmental Economics. Elsevier, 1989.