TY  - BOOK
AU  - Johnston,R.J.
TI  - Environmental problems: nature, economy, and state 
SN  - 1852930004
AV  - TD177 J64 1989
U1  - 363.73 20
PY  - 1989///
CY  - London
PB  - Belhaven
KW  - Contaminación
KW  - Aspectos sociales
KW  - Aspectos económicos
N1  - Includes bibliographical references (p. [200]-209) and index
ER  -