(2008). The state of the nation's ecosystems 2008: Measuring the lands, waters, and living resources of the United States. Island Press.
Chicago-Zitierstil (17. Ausg.)The State of the Nation's Ecosystems 2008: Measuring the Lands, Waters, and Living Resources of the United States. Washington, D.C: Island Press, 2008.
MLA-Zitierstil (9. Ausg.)The State of the Nation's Ecosystems 2008: Measuring the Lands, Waters, and Living Resources of the United States. Island Press, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.