TY  - BOOK
AU  - Howes,Vernon E.
TI  - Pre-calculus mathematics: A programmed text 
AV  - QA39 H68
PY  - 1967///
CY  - New York
PB  - J. Wiley
KW  - Matemáticas
KW  - 1961-
KW  - Enseñanza programada
N1  - Contenido: v. 1. algebra-- v. 2. functions and relations-- v. 3. analytic geometry
ER  -