WELLMAN, C. H., & SIMMONS, A. J. (2006). Is there a duty to obey the law? Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)WELLMAN, Christopher Heath, agus A. John SIMMONS. Is There a Duty to Obey the Law? Cambridge: Cambridge University Press, 2006.
Lua MLA (9ú heag.)WELLMAN, Christopher Heath, agus A. John SIMMONS. Is There a Duty to Obey the Law? Cambridge University Press, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.