TY  - BOOK
AU  - Crosswhite,Joe F.
TI  - Merill Pre-calculus mathematics: a programmed text
AV  - QA303 .C88 1988
U1  - 510 
PY  - 1988///
CY  - New York
PB  - Wiley
KW  - Mathematics
KW  - Programmed instruction
N1  - Later ed. published in 2 v. in 1975 under title: Essentials of mathematics--pre-calculus; "Answer shield[s]" inserted in each book; book 1. Algebra.--book 2. Functions and relations.--book 3. Analytic trigonometry
ER  -