APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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