TY  - BOOK
AU  - Hatfield, Larry L.
TI  - Investigating mathematics: an interactive approach 
SN  - 067513160X
U1  - CIR 510 H362 1994 
PY  - 1994///
CY  - New York, N.Y.
PB  - Glencoe/McGraw-Hill
KW  - Mathematics
KW  - Research
N1  - Includes index
ER  -