Johnson, N. C., Szaro, R. C., & Sexton, W. T. (1999). Ecological stewardship: A common reference for ecosystem management. Oxford: Elsevier Science Ltd.
Παραπομπή Chicago StyleJohnson, N. C., R. C. Szaro, and W. T. Sexton. Ecological Stewardship: A Common Reference for Ecosystem Management. Oxford: Elsevier Science Ltd, 1999.
Παραπομπή MLAJohnson, N. C., R. C. Szaro, and W. T. Sexton. Ecological Stewardship: A Common Reference for Ecosystem Management. Oxford: Elsevier Science Ltd, 1999.
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