TY  - BOOK
AU  - Ward, Barbara
AU  - Dubos, Rene
TI  - Only one earth: the care and maintenance of a small planet
U1  - 614.71 21st
PY  - 1972///
CY  - Harmondsworth
PB  - Penguin
KW  - Pollution; Air pollution; Water-Pollution
ER  -