McTAGGART, J. M. (1994). The Value Imperative. the Free Press.
Lua i Stíl Chicago (17ú heag.)McTAGGART, James M. The Value Imperative. the Free Press, 1994.
Lua MLA (8ú heag.)McTAGGART, James M. The Value Imperative. the Free Press, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.