Cita APA (7a ed.)

Gardiner, S. C., & Blackstone, J. H. (1991). The theory of constraints and the make-or-buy decision. [s.n.].

Cita Chicago Style (17a ed.)

Gardiner, Stanley C., y John H. Blackstone. The Theory of Constraints and the Make-or-buy Decision. [S.l.]: [s.n.], 1991.

Cita MLA (9a ed.)

Gardiner, Stanley C., y John H. Blackstone. The Theory of Constraints and the Make-or-buy Decision. [s.n.], 1991.