Riddall, J. G. (1999). Jurisprudence (second edition.). LexisNexis.
Chicago Style aipamenaRiddall, J. G. Jurisprudence. second edition. London ; Dayton, Ohio: LexisNexis, 1999.
MLA aipamenaRiddall, J. G. Jurisprudence. second edition. LexisNexis, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.