APA-referens

Copson, E. T. (1976). Partial differential equations. S.Chand & Co..

Chicago-stil citat

Copson, E. T. Partial Differential Equations. New Delhi: S.Chand & Co., 1976.

MLA-referens

Copson, E. T. Partial Differential Equations. S.Chand & Co., 1976.