APA-viite

Ames, W. F. (1977). Numerical methods for partial differential equations (23.).

Chicago-tyylinen lähdeviittaus

Ames, William F. Numerical Methods for Partial Differential Equations. 23. Academic Press, New York, 1977.

MLA-viite

Ames, William F. Numerical Methods for Partial Differential Equations. 23. 1977.