APA (7th ed.) Citation

Helm, C., & Wirl, F. (2011). International environmental agreements: Incentive contracts with multilateral externalities. Inst. für Volkswirtschaftslehre.

Chicago Style (17th ed.) Citation

Helm, Carsten, and Franz Wirl. International Environmental Agreements: Incentive Contracts with Multilateral Externalities. Oldenburg: Inst. für Volkswirtschaftslehre, 2011.

MLA (9th ed.) Citation

Helm, Carsten, and Franz Wirl. International Environmental Agreements: Incentive Contracts with Multilateral Externalities. Inst. für Volkswirtschaftslehre, 2011.