Elements of metaphysics
Brevard (N.C.) 1955. 122 S.
Problems of metaphysics
San Francisco (Calif.) 1970. 137 S.
Metaphysical thinking
London 1978. 162 S.
Elements of metaphysics
London 1903. 419 S.
Metaphysics
Englewood Cliffs (N.J.) 1983. 131 S.
Metaphysics
Boulder (Colo.) 1993. 222 S.
Metaphysics
London 1966. 206 S.
Metaphysics. An introduction
New York 1974. 259 S.
Metaphysics, an introduction
Encino (Calif.) 1976. 248 S.
An introduction to metaphysics
New Haven (Conn.) 1959. 214 S.