APA (7th ed.) Citation

Nachbin, L. (1967). Elements of approximation theory. Van Nostrand.

Chicago Style (17th ed.) Citation

Nachbin, Leopoldo. Elements of Approximation Theory. Princeton, N.J. [etc.]: Van Nostrand, 1967.

MLA (9th ed.) Citation

Nachbin, Leopoldo. Elements of Approximation Theory. Van Nostrand, 1967.

Warning: These citations may not always be 100% accurate.