Environmental education : selected activities of UNESCO-UNEPN international environmental education programme 1975-1990
Environmental education : selected activities of UNESCO-UNEPN international environmental education programme 1975-1990
- 1st ed.
- Paris : UNESCO, 1990.
- (5), 99 p. ; 29.6 cm.
Environment Management
1994-05-16
Environment education
Unesco
UNEP
574.507
Environment Management
1994-05-16
Environment education
Unesco
UNEP
574.507