Senge, P. M. (1990). The Fifth Discipline. Currency and Doubleday.
Lua i Stíl Chicago (17ú heag.)Senge, Peter M. The Fifth Discipline. Currency and Doubleday, 1990.
Lua MLA (9ú heag.)Senge, Peter M. The Fifth Discipline. Currency and Doubleday, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.