Dupuis, A. M. (1970). Nature, aims, and policy. University Illinois Press.
Lua i Stíl Chicago (17ú heag.)Dupuis, Adrian Maurice. Nature, Aims, and Policy. Urbana: University Illinois Press, 1970.
Lua MLA (9ú heag.)Dupuis, Adrian Maurice. Nature, Aims, and Policy. University Illinois Press, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.