Wolff, Peter, 1923- |
Breakthroughs in physics / Peter Wolff |
New York ; Toronto : Signet, 1965. |
Adler, Mortimer Jerome, 1902- |
Foundations of science and mathematics / by Mortimer J. Adler and Peter Wolff ; preface by Curtis Wilson |
Chicago : Encyclopaedia britannica, 1960. |