na INLIS000000000000159 N 0010-0317000157 A Problem-Solving Approach to Intermediate Algebra Keedy, Mervin L. 6th ed New York : Addison-Wesley 1991 xxiv, 643 (12)hlm. 28 cm 0201196956 512.9 Kee i 512.9 ALGEBRA 243888112 243888112 243888112