TY - BOOK AU - Hill,Tim TI - Essential precalculus: a self-teaching guide SN - 9781717364975 (paperback) AV - QA303.2 PY - 2018/// CY - [place of publication not identified] PB - Questing Vole Press KW - Precalculus KW - Textbooks KW - Problems, exercises, etc N1 - Includes index ER -