TY  - BOOK
AU  - Berry,John S.
AU  - Graham,Edward
AU  - Watkins,Antony J.P.
TI  - Learning mathematics through derive
SN  - 0130375322
PY  - 1993///
CY  - New York : 
PB  - Ellis Horwood. 
KW  - Mathematics
KW  - Study and teaching
N1  - Includes index
ER  -