APA (7th ed.) Citation

Williams, M. (1991). Wetlands: A threatened landscape. Blackwell.

Chicago Style (17th ed.) Citation

Williams, Michael. Wetlands: A Threatened Landscape. Cambridge, Mass. <<[u.a.]>>: Blackwell, 1991.

MLA (9th ed.) Citation

Williams, Michael. Wetlands: A Threatened Landscape. Blackwell, 1991.