TY  - BOOK
AU  - Ward,Barbara
AU  - Dubos,Rene
TI  - Only one earth : the care and maintenance of a small planet
SN  - 0393063917
U1  - 523.31 
PY  - 1972///
CY  - New York
PB  - W W Norton and Company
KW  - human ecology
KW  - only one earth
KW  - planet
ER  -