APA (7th ed.) Citation

Boyce, W. E., & DiPrima, R. C. (1969). Elementary Differential Equations and Boundary Value Problems (2d ed.). Wiley.

Chicago Style (17th ed.) Citation

Boyce, William E., and Richard C. DiPrima. Elementary Differential Equations and Boundary Value Problems. 2d ed. New York: Wiley, 1969.

MLA (9th ed.) Citation

Boyce, William E., and Richard C. DiPrima. Elementary Differential Equations and Boundary Value Problems. 2d ed. Wiley, 1969.