Cita APA (7a ed.)

Protter, M. H., & Weinberger, H. F. (1967). Maximum principles in differential equations. Prentice-Hall.

Cita Chicago Style (17a ed.)

Protter, Murray H., y Hans F. Weinberger. Maximum Principles in Differential Equations. Englewood Cliffs: Prentice-Hall, 1967.

Cita MLA (8a ed.)

Protter, Murray H., y Hans F. Weinberger. Maximum Principles in Differential Equations. Prentice-Hall, 1967.