Halloran, J. (1981). Supervision: The art of management. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Halloran, Jack. Supervision: The Art of Management. Englewood Cliffs, N.J.: Prentice-Hall, 1981.
Lua MLA (9ú heag.)Halloran, Jack. Supervision: The Art of Management. Prentice-Hall, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.