IUCN European Programme. (1997). Fishing for a Living: The Ecology and Economics of Fishponds in Central Europe.
Chicagoスタイル(17版)引用形式IUCN European Programme. Fishing for a Living: The Ecology and Economics of Fishponds in Central Europe. 1997.
MLA(9版)引用形式IUCN European Programme. Fishing for a Living: The Ecology and Economics of Fishponds in Central Europe. 1997.
警告: この引用は必ずしも正確ではありません.