John, F. (1978). Partial differential equations (3rd ed.). Springer-Verlag.
Citación estilo ChicagoJohn, Fritz. Partial Differential Equations. 3rd ed. Springer-Verlag, 1978.
Cita MLAJohn, Fritz. Partial Differential Equations. 3rd ed. Springer-Verlag, 1978.
Warning: These citations may not always be 100% accurate.