APA

Tveito A., Winther R., . (1998). Introduction to partial differential equations. New York: Springer.

Chicago

Tveito Aslak, Winther Ragnar, . 1998. Introduction to partial differential equations. New York: Springer.

Harvard

Tveito A., Winther R., . (1998). Introduction to partial differential equations. New York: Springer.

MLA

Tveito Aslak, Winther Ragnar, . Introduction to partial differential equations. New York: Springer. 1998.