New trends in chemistry teaching.
- Paris : Unesco, c 1992.
- Vols. : ill. ; 30 cm.
- The teaching of basic science. .
V. 6-- ;
42 42
92-3-102778-6
Chemistry -- Study and teaching.
540.7 / U3n
V. 6-- ;
42 42
92-3-102778-6
Chemistry -- Study and teaching.
540.7 / U3n