Cita APA (7th ed.)

Du Plessis, N. (1986). Theory and Problems of Partial Differential Equations. McGraw-Hill.

Cita Chicago (17th ed.)

Du Plessis, Nicolaas. Theory and Problems of Partial Differential Equations. New York: McGraw-Hill, 1986.

Cita MLA (9th ed.)

Du Plessis, Nicolaas. Theory and Problems of Partial Differential Equations. McGraw-Hill, 1986.

Atenció: Aquestes cites poden no estar 100% correctes.