Adair, J. (1991). The effective supervisor. Jaico.
Lua i Stíl Chicago (17ú heag.)Adair, John. The Effective Supervisor. Mumbai: Jaico, 1991.
Lua MLA (9ú heag.)Adair, John. The Effective Supervisor. Jaico, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.