Rennings, K. (1997). Voluntary agreements in environmental protection: Experiences in Germany and future perspectives.
Chicago-Zitierstil (17. Ausg.)Rennings, Klaus. Voluntary Agreements in Environmental Protection: Experiences in Germany and Future Perspectives. Mannheim, 1997.
MLA-Zitierstil (9. Ausg.)Rennings, Klaus. Voluntary Agreements in Environmental Protection: Experiences in Germany and Future Perspectives. 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.