TY  - BOOK
AU  - Servais,W.(Willy)
AU  - Varga,T
TI  - Teaching school mathematics
SN  - 0140800840
PY  - 1971///
CY  - Harmondsworth
PB  - Penguin
KW  - Mathematics
KW  - Study and teaching (Secondary)
N1  - 'A Unesco Source book'
ER  -