Larson, R. E., Edwards, B. H. j. a., & Hostetler, R. P. (1990). Calculus with analytic geometry (4th ed.). D.C. Heath and Company.

Larson, Roland E., Bruce H. joint auth Edwards, and Robert P. Hostetler. Calculus with Analytic Geometry. 4th ed. Massachusetts: D.C. Heath and Company, 1990.

Larson, Roland E., et al. Calculus with Analytic Geometry. 4th ed. D.C. Heath and Company, 1990.