Philosophy of Law:
An Introduction to Jurisprudence
(with Jeffrey Murphy)
Rowman and Allenheld, 1984, Revised.
Reissued by Westview, 1990.
Philosophy of Law, 6th, 7th, and 8th Editions
(with Joel Feinberg)
Wadsworth Press, 2006.
The Oxford Handbook of Jurisprudence and Legal Philosophy
(with Scott Shapiro)
Oxford University Press, 2002.