TY  - BOOK
AU  -  Leff, Lawrence S.
TI  - A complete study guide to pre-calculus : : your go-to guide for everything pre-calculus 
SN  - 9781506281384
AV  - REF QA 39.3 .L44 2021 
PY  - 2021///
CY  - Kaplan Inc.
KW  - Calculus
ER  -