Collins, J. C., & Porras, J. I. (1994). Built to last: Successful habits of visionary companies. HarperBusiness.
Dyfyniad Arddull ChicagoCollins, James C., and Jerry I. Porras. Built to Last: Successful Habits of Visionary Companies. New York: HarperBusiness, 1994.
Dyfyniad MLACollins, James C., and Jerry I. Porras. Built to Last: Successful Habits of Visionary Companies. HarperBusiness, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.