APA

Leung A. W., . (1989). Systems of nonlinear partial differential equations. Dordrecht [u.a.]: Kluwer.

Chicago

Leung Anthony W, . 1989. Systems of nonlinear partial differential equations. Dordrecht [u.a.]: Kluwer.

Harvard

Leung A. W., . (1989). Systems of nonlinear partial differential equations. Dordrecht [u.a.]: Kluwer.

MLA

Leung Anthony W, . Systems of nonlinear partial differential equations. Dordrecht [u.a.]: Kluwer. 1989.