Sharpe, W. F. (1969). The economics of computers. New York: Columbia University Press.
Trích dẫn kiểu ChicagoSharpe, William F. The Economics of Computers. New York: Columbia University Press, 1969.
Deismireacht MLASharpe, William F. The Economics of Computers. New York: Columbia University Press, 1969.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.