TY  - BOOK
AU  - Dilley,C.A.
TI  - Heath Elementary Mathematics / 
U1  - 510 
PY  - 1972///
CY  - Massachusetts
PB  - D. C. Heath, 
KW  - Mathematics
KW  - Estimation theory
KW  - Geometry
KW  - Equations
KW  - Graphs
ER  -