Stein, S. K., & Barcellos, A. (1994). An introduction to differential equations to accomp. ...: Calculus and Analytic Geometry (5th ed.). McGraw-Hill.

Stein, Sherman K., and Anthony Barcellos. An Introduction to Differential Equations to Accomp. ...: Calculus and Analytic Geometry. 5th ed. New York: McGraw-Hill, 1994.

Stein, Sherman K., and Anthony Barcellos. An Introduction to Differential Equations to Accomp. ...: Calculus and Analytic Geometry. 5th ed. McGraw-Hill, 1994.