ISBN 0534402321 books & textbook
Student Solutions Manual for Cohen's Precalculus: With Unit Circle Trigonometry, 4th
DAVID COHEN THEODORE B. LEE DAVID SKLAR ROSS RUEGER
Cengage Learning /2006-05-12 Paperback / 752 Pages
isbn-10: 0534402321 / isbn-13: 9780534402327