TY  - BOOK
AU  - Botkin, Daniel B.
TI  - Changing the global environment: : perspectives on human involvement
U1  - 628.53 
PY  - 1989///
CY  - Boston, Mass.
PB  - Academic Press
KW  - Impacto ambiental
KW  - Medio ambiente
KW  - Contaminación
N1  - 1993-186
ER  -