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, Engel, J. R., & Engel, J. G. (1990). Ethics of environment and development: Global challenge, international response. Belhaven Press.

Chicago Style (17th ed.) Citation

International Union for Conservation of Nature and Natural Resources. Ethics Working Group, Conference on Conservation and Development: Implementing the World Conservation Strategy, J. Ronald Engel, and Joan Gibb Engel. Ethics of Environment and Development: Global Challenge, International Response. London: Belhaven 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. Belhaven Press, 1990.