TY  - BOOK
AU  - Wilford,L.D.R.
TI  - Chemistry in action: teacher's guide 
SN  - 0216911958
U1  - 540 23
PY  - 1983///.
CY  - London: 
PB  - Blackie, 
KW  - Chemistry
N1  - Includes index
ER  -