Barron, A., Penner, J. E., Schiff, D., & Nobles, R. (2005). Introduction to jurisprudence and legal theory: Commentary and materials. LexisNexis Butterworths ; Oxford University Press.

Barron, Anne, J. E. Penner, David Schiff, and Richard Nobles. Introduction to Jurisprudence and Legal Theory: Commentary and Materials. London ; Dayton, Ohio ; Oxford: LexisNexis Butterworths ; Oxford University Press, 2005.

Barron, Anne, et al. Introduction to Jurisprudence and Legal Theory: Commentary and Materials. LexisNexis Butterworths ; Oxford University Press, 2005.