Moral judgment
London 1955. 224 S.
The theory of good and evil
London 1924. 2 Bände.
Ethics and natural law
New York 1920. 345 S.
Natural and social morals
London 1909. 314 S.
A theory of value
New York 1938. 304 S.
Creative morality
London 1937. 270 S.
The philosophy of morality
Milwaukee (Wis.) 1953. 252 S.
Moral absolutes. An essay on the nature and rationale of morality
Bern 1989. 115 S.
Ethical idealism
Berkeley (Calif.) 1987. 148 S.
Introduction to value theory
Englewood Cliffs (N.J.) 1969. 199 S.