College Algebra/
Larson Ron  2009. 
College Algebra/ Ron Larson.- - 7th ed.: - United States; Cengage, 2009. - iv,131p.:ill. includes index.
9780618946543
QA 154.2 .L37 2009
                        College Algebra/ Ron Larson.- - 7th ed.: - United States; Cengage, 2009. - iv,131p.:ill. includes index.
9780618946543
QA 154.2 .L37 2009