APA (7th ed.) Citation

World Wilderness Congress Denver, Colo. and Estes Park, Colo, World Wilderness Leadership Foundation, Unesco. MAB Secretariat, United States. National Park Service. Science Publications Office, Gregg, W. P., Krugman, S. L., & Wood, J. D., Jr. (1989). Worldwide conservation: Proceedings of the symposium on biosphere reserves. U.S. Dept. of the Interior, National Park Service, Science Publications Office.

Chicago Style (17th ed.) Citation

World Wilderness Congress Denver, Colo. and Estes Park, Colo, World Wilderness Leadership Foundation, Unesco. MAB Secretariat, United States. National Park Service. Science Publications Office, William P. Gregg, Stanley L. Krugman, and James D. Wood, Jr. Worldwide Conservation: Proceedings of the Symposium on Biosphere Reserves. Atlanta, Ga., USA: U.S. Dept. of the Interior, National Park Service, Science Publications Office, 1989.

MLA (9th ed.) Citation

World Wilderness Congress Denver, Colo. and Estes Park, Colo, et al. Worldwide Conservation: Proceedings of the Symposium on Biosphere Reserves. U.S. Dept. of the Interior, National Park Service, Science Publications Office, 1989.