Hannagan,. (1997). Management concepts and practices. Macmillan.
Lua i Stíl Chicago (17ú heag.)Hannagan. Management Concepts and Practices. Delhi: Macmillan, 1997.
Lua MLA (9ú heag.)Hannagan. Management Concepts and Practices. Macmillan, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.