एपीए उद्धरण

Graffi, D. (1980). Nonlinear partial differential equations in physical problems. Pitman Advanced Pub. Program.

शिकागो स्टाइल उद्धरण

Graffi, Dario. Nonlinear Partial Differential Equations in Physical Problems. Boston: Pitman Advanced Pub. Program, 1980.

एमएलए उद्धरण

Graffi, Dario. Nonlinear Partial Differential Equations in Physical Problems. Pitman Advanced Pub. Program, 1980.