TY  - BOOK
AU  - Clemson,David
AU  - Clemson,Wendy
TI  - Mathematics in the early years
SN  - 0415096286 (acidfree paper)
AV  - QA135.5 .C547 1994
U1  - 372.7049 20
PY  - 1994///
CY  - London, New York
PB  - Routledge
KW  - Mathematics
KW  - Study and teaching (Primary)
N1  - Includes bibliographical references (p. [213]-218) and indexes
UR  - http://www.loc.gov/catdir/enhancements/fy0648/93040268-d.html
ER  -