Jackson, B., & Dubos, R. J. (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, prepared with the assistance of a 152-member Committee of Corresponding Consultants in 58 countries. Penguin Books.

Jackson, Barbara, and Rene Jules Dubos. 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, Prepared with the Assistance of a 152-member Committee of Corresponding Consultants in 58 Countries. Middlesex: Penguin Books, 1972.

Jackson, Barbara, and Rene Jules Dubos. 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, Prepared with the Assistance of a 152-member Committee of Corresponding Consultants in 58 Countries. Penguin Books, 1972.