Bennis, W. G. (1973). The leaning ivory tower. Jossey-Bass Pub.
Lua i Stíl Chicago (17ú heag.)Bennis, Warren G. The Leaning Ivory Tower. San Francisco: Jossey-Bass Pub, 1973.
Lua MLA (9ú heag.)Bennis, Warren G. The Leaning Ivory Tower. Jossey-Bass Pub, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.