Jackson, B., Dubos, R. J., & Conference:United Nations Conference on the Human Environment. (1972). Only one earth: The care and maintenance of a small planet: an unofficial report commissioned by the Secretary-General of the United Nations Conference on the Human Environment. Norton.
Lua i Stíl Chicago (17ú heag.)Jackson, Barbara, Reni J. Dubos, agus Conference:United Nations Conference on the Human Environment. Only One Earth: The Care and Maintenance of a Small Planet: An Unofficial Report Commissioned by the Secretary-General of the United Nations Conference on the Human Environment. New York: Norton, 1972.
Lua MLA (9ú heag.)Jackson, Barbara, et al. Only One Earth: The Care and Maintenance of a Small Planet: An Unofficial Report Commissioned by the Secretary-General of the United Nations Conference on the Human Environment. Norton, 1972.