Gaya APA

Ames, W, F., Swanson, C, P. (1977). Numerical methods for partial differential eguations . London: London: Thomas Nelson; 1977.

Gaya MLA

Ames, William, F.., Swanson, Carl, P.. "Numerical methods for partial differential eguations". London: London: Thomas Nelson; 1977, 1977. Text.