Hofreither, M. F., & Vogel, S. (1995). The role of agricultural externalities in high income countries: Proceedings of the 37th Seminar of the European Association of Agricultural Economists, 14-17 September 1994, Vienna (Austria). Wissenschaftsverlag Vauk.
Παραπομπή σε μορφή Chicago (17η εκδ.)Hofreither, Markus Franz, και Stefan Vogel. The Role of Agricultural Externalities in High Income Countries: Proceedings of the 37th Seminar of the European Association of Agricultural Economists, 14-17 September 1994, Vienna (Austria). Kiel: Wissenschaftsverlag Vauk, 1995.
Παραπομπή σε μορφή MLA (8th εκδ.)Hofreither, Markus Franz, και Stefan Vogel. The Role of Agricultural Externalities in High Income Countries: Proceedings of the 37th Seminar of the European Association of Agricultural Economists, 14-17 September 1994, Vienna (Austria). Wissenschaftsverlag Vauk, 1995.