TY  - BOOK
AU  - Porritt,Jonathon
TI  - Salvemos la tierra
SN  - 9681901169
PY  - 1991///
CY  - México, D.F.
PB  - Aguilar
KW  - Ecology
KW  - Environmentalism
KW  - Local
N1  - Includes index
ER  -