Foundation for Nature Management and Sustainable Development, International Congress of Nature Management and Sustainable Development, & Verwey, W. D. (1989). Nature management and sustainable development: Proceedings of the International Congress Groningen, The Netherlands, 6-9 December 1988. Amsterdam: IOS.
Citación estilo ChicagoFoundation for Nature Management and Sustainable Development, International Congress of Nature Management and Sustainable Development, y Wil D. Verwey. Nature Management and Sustainable Development: Proceedings of the International Congress Groningen, The Netherlands, 6-9 December 1988. Amsterdam: IOS, 1989.
Cita MLAFoundation for Nature Management and Sustainable Development, International Congress of Nature Management and Sustainable Development, y Wil D. Verwey. Nature Management and Sustainable Development: Proceedings of the International Congress Groningen, The Netherlands, 6-9 December 1988. Amsterdam: IOS, 1989.