TY  - BOOK
AU  - Ward,Barbara
AU  - Dubos,René Jules
TI  - 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 [...] 
T2  - Pelican Books
PY  - 1972///
CY  - Harmondsworth, Victoria (Australia)
PB  - Penguin Books
N1  - Indice
ER  -