(1991). Management / Ramon J. Aldag, Timothy M. Stearns. College Division.
Lua i Stíl Chicago (17ú heag.)Management / Ramon J. Aldag, Timothy M. Stearns. College Division, 1991.
Lua MLA (8ú heag.)Management / Ramon J. Aldag, Timothy M. Stearns. College Division, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.