Παραπομπή σε μορφή APA (7η εκδ.)

Hartman, A. (2004). Ruthless execution what business leaders do when their companies hit the wallAmir Hartman. Prentice Hall.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hartman, Amir. Ruthless Execution What Business Leaders Do When Their Companies Hit the WallAmir Hartman. Prentice Hall, 2004.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hartman, Amir. Ruthless Execution What Business Leaders Do When Their Companies Hit the WallAmir Hartman. Prentice Hall, 2004.