The philosophic impulse. A contemporary introduction
Belmont (Calif.) 1972. 550 S.
Man is the measure. A cordial invitation to the central problems of philosophy
New York 1976. 296 S.
An introduction to philosophy. 2. Aufl
Delmar (N.Y.) 1991. 287 S.
Necessary questions. An introduction to philosophy
Englewood Cliffs (N.J.) 1989. 240 S.
A basic guide to philosophy
New York 1970. 127 S.
Introduction to philosophy
New York 1965. 224 S.
Philosophy. An introduction. Nachdr
Bombay 1964. 442 S.
Open questions. An introduction to philosophy
Belmont (Calif.) 1992. 476 S.
Looking at ourselves. An introduction to philosophy
Belmont (Calif.) 1977. 409 S.
Philosophizing with Socrates. An introduction to philosophy
Washington D.C. 1980. 248 S.