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, /
Ward, Barbara, 1914-
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, / - Harmondsworth : Penguin, 1972 - 304 p. ; 19 cm.
0140216014
72-305289 //r862
Human ecology
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, / - Harmondsworth : Penguin, 1972 - 304 p. ; 19 cm.
0140216014
72-305289 //r862
Human ecology