Buttrick, R. (1997). The project workout: A tool kit for reaping the rewards from all your business projects. Pitman.
Chicago-Zitierstil (17. Ausg.)Buttrick, Robert. The Project Workout: A Tool Kit for Reaping the Rewards from All Your Business Projects. London: Pitman, 1997.
MLA-Zitierstil (9. Ausg.)Buttrick, Robert. The Project Workout: A Tool Kit for Reaping the Rewards from All Your Business Projects. Pitman, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.