Berkson, I. (1968). Ethics, politics, and education. Univ. of Oregon.
Lua i Stíl Chicago (17ú heag.)Berkson, I.B. Ethics, Politics, and Education. Eugene: Univ. of Oregon, 1968.
Lua MLA (8ú heag.)Berkson, I.B. Ethics, Politics, and Education. Univ. of Oregon, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.