TY  - BOOK
AU  - Raven,Peter H.
AU  - Berg,Linda R.
AU  - Johnson,George B.
TI  - Environment
SN  - 0030143292
PY  - 1993///
CY  - Philadelphia
PB  - Saunders
KW  - Environmental education
KW  - Environmental policy
KW  - Conservation of natural resources
ER  -