Goldratt, E. M. (1990). Theory of constraints and how Should it be implemented. North River Press.
Lua i Stíl Chicago (17ú heag.)Goldratt, Eliyahu M. Theory of Constraints and How Should It Be Implemented. Mumbai: North River Press, 1990.
Lua MLA (9ú heag.)Goldratt, Eliyahu M. Theory of Constraints and How Should It Be Implemented. North River Press, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.