TY  - BOOK
AU  - Waddington,D.J.
ED  - Unesco
TI  - Teaching school chemistry
SN  - 9231021311 (pbk.)
AV  - QD40 .T43 1984
U1  - 540/.7�19 
PY  - 1984///
CY  - Paris
PB  - Unesco
KW  - Chemistry x Study and teaching
ER  -