APA (7th ed.) Citation

Cheney, E. W. (1982). Introduction to approximation theory (Second edition.). AMS Chelsea Publishing.

Chicago Style (17th ed.) Citation

Cheney, E. W. Introduction to Approximation Theory. Second edition. Providence, Rhode Island: AMS Chelsea Publishing, 1982.

MLA (9th ed.) Citation

Cheney, E. W. Introduction to Approximation Theory. Second edition. AMS Chelsea Publishing, 1982.