APA-ийн эшлэл(7 дахь хэвлэлт)

Goldratt, E. M., Schragenheim, E., & Ptak, C. A. (2000). Necessary but not Sufficient: A Theory of Constraints Business Novel. North River Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Goldratt, Eliyahu M., Eli Schragenheim, ба Carol A. Ptak. Necessary but Not Sufficient: A Theory of Constraints Business Novel. Great Barrington, MA: North River Press, 2000.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Goldratt, Eliyahu M., et al. Necessary but Not Sufficient: A Theory of Constraints Business Novel. North River Press, 2000.