Dale, M. (1998). Developing management skills: Techniques for improving learning & performance (2nd ed.). Kogan Page.
Lua i Stíl Chicago (17ú heag.)Dale, Margaret. Developing Management Skills: Techniques for Improving Learning & Performance. 2nd ed. London: Kogan Page, 1998.
Lua MLA (8ú heag.)Dale, Margaret. Developing Management Skills: Techniques for Improving Learning & Performance. 2nd ed. Kogan Page, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.