Precalculus mathematics / David G. Crowdis, Brandon W. Wheeler. Crowdis, David G. Wheeler, Brandon W., joint author. Mathematics. Precalculus. QA39.2 .C77 512.1 CRP Includes index. Beverly Hills, Calif. : Glencoe Press, 1976. 1976. 1976 Text vii, 426 p. : eng