TY  - BOOK
AU  - Carpenter,Thomas P.
AU  - Fennema,Elizabeth
AU  - Romberg,Thomas A.
TI  - Rational numbers: an integration of research 
T2  - Studies in mathematical thinking and learning
SN  - 0-8058-1135-4
U1  - 513.26071 21E
PY  - 1993///
CY  - Hillsdale, N.J.
PB  - Lawrence Erlbaum Associates
ER  -