APA (7th ed.) Citation

International Union for Conservation of Nature and Natural Resources. Ethics Working Group, Conference on Conservation and Development: Implementing the World Conservation Strategy (1986 : Ottawa, Ont.), Engel, J. R., & Engel, J. G. (1990). Ethics of environment and development: Global challenge, international response. University of Arizona Press.

Chicago Style (17th ed.) Citation

International Union for Conservation of Nature and Natural Resources. Ethics Working Group, Ont.) Conference on Conservation and Development: Implementing the World Conservation Strategy (1986 : Ottawa, J. Ronald Engel, and Joan Gibb Engel. Ethics of Environment and Development: Global Challenge, International Response. Tucson: University of Arizona Press, 1990.

MLA (9th ed.) Citation

International Union for Conservation of Nature and Natural Resources. Ethics Working Group, et al. Ethics of Environment and Development: Global Challenge, International Response. University of Arizona Press, 1990.