Gaya APA

Swanson, C, P., Greenspan, D. (1965). Introductory numerical analysis of elliptic boundary value problems . New York: New York: Harper & Row; 1965.

Gaya MLA

Swanson, Carl, P.., Greenspan, Donald. "Introductory numerical analysis of elliptic boundary value problems". New York: New York: Harper & Row; 1965, 1965. Text.