Cita APA (7a ed.)

International Conference of Environmental Policy in a Market Economy, Lerland, E. v., & Folmer, H. (1989). Valuation methods and policy making in environmental economics. Elsevier.

Cita Chicago Style (17a ed.)

International Conference of Environmental Policy in a Market Economy, E. van Lerland, y Henk Folmer. Valuation Methods and Policy Making in Environmental Economics. Amsterdam [etc.]: Elsevier, 1989.

Cita MLA (9a ed.)

International Conference of Environmental Policy in a Market Economy, et al. Valuation Methods and Policy Making in Environmental Economics. Elsevier, 1989.