G. F. Simmons: Introduction to Topology and Modern Analysis, Mcgraw-Hill 1963
G. Bachman, L. Narici: Functional Analysis. Academic Press, N.Y. 1966.
E. Kreyszig: Introductory Functional Analysis, John Wiley and sons 1978
I have also found Wikipedia to be extremely useful as a general reference.
Last Modified: Fri, 15 Jul 2011 14:57:09 SAST