References
- VIEWS OF THE NATION AND WORLD The H. John Heinz III Center for Science, Economics and the Environment. 2002. The state of the Nation’s Ecosystems—The Lands, Waters, and Living Resources of the United States. Cambridge University Press, Cambridge, UK. 270 pp., US$25.00 (paperback), ISBN 0-521-52572-1.Google Scholar
- Gardner, G., C. Bright, C. Flavin and others. 2003. The State of the World 2003. W. W. Norton & Company, New York, NY, USA. 241 pp., US$15.95 (paperback). ISBN 0-393-32279-3.Google Scholar
- Worldwatch Institute. 2002. Vital Signs 2002. W. W. Norton & Company, New York, NY, USA. XXpp., US$14.95 (paperback). ISBN 0-393-32315-3.Google Scholar
- MONTANA FIELD GUIDE Lesica, P. and P. Husby. 2001. Field Guide to Montana’s Wetland Vascular Plants. Montana Wetland Trust, Helena, Montana, USA. 68 pp. and appendices, free (paperback).Google Scholar
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© Society of Wetland Scientists 2003