TY  - BOOK
AU  - Keedy, Mervin L
TI  - Essential mathematics. (3rd ed.)
SN  - 0201038374
AV  - QA 39.2 Kee 
PY  - 1980///
CY  - Reading,Mass.
PB  - Addison-Wesley
KW  - MATHEMATICS--STUDY AND TEACHING
ER  -