PROBABILITY: A Survey of the Mathematical Theory by John Lamperti

Lectures on Lie Groups by J. Frank Adams

A Hilbert Space Problem Book by P R Halmos

ELEMENTS OF THE TOPOLOGY OF PLANE SETS OF POINTS by M. H. A. NEWMAN,

Introduction to Hilbert Space by P. R. Halmos (1987, Hardcover)

Lectures on Boolean Algebras - Paperback, by Paul R. Halmos - Acceptable n

Introduction to Hilbert Space, 1957 2nd Edition, Paul Halmos

Naive Set Theory by Halmos, Paul R.