McMullen, T. B. (1998). Introduction to the theory of constraints (TOC) management system. St. Lucie Press.
Chicago-viite (17. p.)McMullen, Thomas B. Introduction to the Theory of Constraints (TOC) Management System. Boca Raton [Florida]: St. Lucie Press, 1998.
MLA-viite (8. p.)McMullen, Thomas B. Introduction to the Theory of Constraints (TOC) Management System. St. Lucie Press, 1998.
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