Functional Analysis by Bernard R. Gelbaum ( Hard cover)

Functional Analysis I&II by Kolmogorov and Fomin

Functional Job Analysis: A Foundation for Human Resources Management

Real and Functional Analysis, Third Edition by Serge Lang

Functional Analysis Theory and Applications R.E. Edwards Dover Math Paperback

Functional Data Analysis (Springer Series in Statistics)

Functional Analysis, Sobolev Spaces&Partial Differential Equations-9780387709130

Functional Analysis Revised Enlarged - Mathematical Physics - Reed / Simon 1980