TY  - BOOK
AU  - Trzyna,Thaddeus C
TI  - World directory of environmental organizations: a handbook of national and international organizations and programs, governmental and non-governmental, concerned with protecting the earth's resources 
SN  - 091210287X
AV  - TD 12 W6.1989
PY  - 1989///
CY  - Claremont, Calif.
PB  - California Institute of Public Affairs
KW  - Contaminación
KW  - Prevención
KW  - Directorios
N1  - Incluye apéndices e índice
ER  -