TY  - BOOK
AU  - Duker,Sam
TI  - Individualized instruction in mathematics
SN  - 0810805332
PY  - 1972///
CY  - Metuchen, N. J.
PB  - Scarecrow Press
KW  - Mathematics
KW  - Study and teaching
N1  - Bibliography : p. 412-416
ER  -