World Wilderness Congress Worldwide Conservation, Gregg, W. P., Krugman, S. L., & Wood, J. D. (1987). Fourth World Wilderness Congress Worldwide Conservation: Proceedings of the Symposium on Biosphere Reserves, september 11-18, 1987 YMCA of the Rockies Estes Park Center, Estes Park, Colorado, USA. Atlanta, Georgia: U.S. Department of the Interior National Park Service, Science Publications Office.
Chicago Style CitationWorld Wilderness Congress Worldwide Conservation, William P. Gregg, Stanley L. Krugman, and James D. Wood. Fourth World Wilderness Congress Worldwide Conservation: Proceedings of the Symposium On Biosphere Reserves, September 11-18, 1987 YMCA of the Rockies Estes Park Center, Estes Park, Colorado, USA. Atlanta, Georgia: U.S. Department of the Interior National Park Service, Science Publications Office, 1987.
MLA CitationWorld Wilderness Congress Worldwide Conservation, William P. Gregg, Stanley L. Krugman, and James D. Wood. Fourth World Wilderness Congress Worldwide Conservation: Proceedings of the Symposium On Biosphere Reserves, September 11-18, 1987 YMCA of the Rockies Estes Park Center, Estes Park, Colorado, USA. Atlanta, Georgia: U.S. Department of the Interior National Park Service, Science Publications Office, 1987.