Williams, M. (1990). Wetlands: A threatened landscape. Basil Blackwell.
Chicagoスタイル(17版)引用形式Williams, Michael. Wetlands: A Threatened Landscape. Oxford: Basil Blackwell, 1990.
MLA(9版)引用形式Williams, Michael. Wetlands: A Threatened Landscape. Basil Blackwell, 1990.
警告: この引用は必ずしも正確ではありません.