Moral investigations
Washington D.C. 1977. 210 S.
Thinking critically about ethical issues
Mountain View (Calif.) 1992. 188 S.
Ethics. An examination of contemporary moral problems
New York 1982. 566 S.
Human society in ethics and politics
London 1954. 239 S.
Practical ethics
London 1935. 256 S.
Ethical emotivism
Dordrecht 1987. 201 S.
Anything goes
Wien 2000. 525 S.
Making ethical choices, resolving ethical dilemmas
St. Paul (Minn.) 1998. 349 S.
Ethics and progress. New values in a revolutionary world
New York 1965. 126 S.
Value and obligation. The foundations of an empiricist ethical theory
New York 1964. 122 S.