Aurora: Dover Modern Math Originals Ser.: Category Theory in Context by Emily...

Numerical Math and Computing by David Kincaid and Ward Cheney

Theory of Approximation by N. I. Achieser (1992, Trade Paperback)

Numerical Mathematics and Computing - Paperback, by Ward Cheney / David Kincaid

Graduate Studies in Math Ser.: Course in Approximation Theory by Cheney & Light

Introduction to Approximation Theory - Hardcover By Cheney, Elliott Ward - GOOD

Introduction to Approximation Theory by Elliott W. Cheney

Numerical Math and Computing by David Kincaid and Ward Cheney (1980, Hardcover)