Παραπομπή APA

Protter, M. H., & Weinberger, H. F. (1984). Maximum principles in differential equations. Springer-Verlag.

Παραπομπή Chicago Style

Protter, Murray H., και Hens F. Weinberger. Maximum Principles in Differential Equations. NewYork: Springer-Verlag, 1984.

Παραπομπή MLA

Protter, Murray H., και Hens F. Weinberger. Maximum Principles in Differential Equations. Springer-Verlag, 1984.