Finite mathematics : a modeling approach / Marvin L. Bittinger, J. Conrad Crown. Bittinger, Marvin L. Crown, J. Conrad, joint author. Mathematics. Mathematical models. QA39.2 .B57 517.6 BIF Includes index. Reading, Mass. : Addison-Wesley Pub. Co., c1977. c1977. 1977 Text xi, 375 p. : eng