Johnson, K. N. (1999). Bioregional assessments: Science at the crossroads of management and policy. Washington, D.C.: Island Press.
Παραπομπή Chicago StyleJohnson, K. Norman. Bioregional Assessments: Science At the Crossroads of Management and Policy. Washington, D.C.: Island Press, 1999.
Παραπομπή MLAJohnson, K. Norman. Bioregional Assessments: Science At the Crossroads of Management and Policy. Washington, D.C.: Island Press, 1999.
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