Citazione Stile APA (7a Edizione)

Smith, M. G. (1967). Introduction to the theory of partial differential equations. D. van Nostrand.

Citazione stile Chigago Style (17a edizione)

Smith, M. G. Introduction to the Theory of Partial Differential Equations. Londres: D. van Nostrand, 1967.

Citatione MLA (9a ed.)

Smith, M. G. Introduction to the Theory of Partial Differential Equations. D. van Nostrand, 1967.