TY  - BOOK
AU  - Eicholz,Robert E.
AU  - Fleenor,Charles R.
AU  - O' Daffer,Phares G.
TI  - Investigating school mathematics: workbook 
U1  - 510 
PY  - 1973///
CY  - Menlo Park, Cal.
PB  - Addison-Wesley
KW  - Mathematics
ER  -