Watson, G. A. Approximation theory and numerical methods / G. A. Watson. - New York : J. Wiley & Sons, c1980. - x, 229 p. : ill. ; 24 cm. Includes Bibliography and index. ISBN: 0471277061 : Subjects--Topical Terms: Approximation theory. Dewey Class. No.: 511.4 / WAA 1980