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 [...] /
Ward, Barbara, 1914-1981
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 [...] / Barbara Ward and René Dubos. - Harmondsworth ; Victoria (Australia) : Penguin Books, 1972. - 304 p. : tab. ; 18 cm. - Pelican Books . - Pelican Books .
Indice.
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 [...] / Barbara Ward and René Dubos. - Harmondsworth ; Victoria (Australia) : Penguin Books, 1972. - 304 p. : tab. ; 18 cm. - Pelican Books . - Pelican Books .
Indice.