APA Edition Citation

Bernfeld, S. R., & Lakshmikantham, V. (1974). Introduction to nonlinear boundary value problems. Academic Press.

Chicago Edition Citation

Bernfeld, Stephen R., and V. Lakshmikantham. Introduction to Nonlinear Boundary Value Problems. New York: Academic Press, 1974.

MLA Edition Citation

Bernfeld, Stephen R., and V. Lakshmikantham. Introduction to Nonlinear Boundary Value Problems. Academic Press, 1974.