Cita APA (7th ed.)

Lakshmikantham, V. (1974). An Introduction to nonlinear boundary value problems. Academic Press.

Cita Chicago (17th ed.)

Lakshmikantham, V. An Introduction to Nonlinear Boundary Value Problems. New York: Academic Press, 1974.

Cita MLA (9th ed.)

Lakshmikantham, V. An Introduction to Nonlinear Boundary Value Problems. Academic Press, 1974.