Sorenson, R. (1951). The art of board membership. Association Press.
Lua i Stíl Chicago (17ú heag.)Sorenson, Roy. The Art of Board Membership. Association Press, 1951.
Lua MLA (9ú heag.)Sorenson, Roy. The Art of Board Membership. Association Press, 1951.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.