Cita APA (7th ed.)

Sharpe, W. F. (1969). The economics of computers. Columbia University Press.

Cita Chicago (17th ed.)

Sharpe, William F. The Economics of Computers. New York: Columbia University Press, 1969.

Cita MLA (9th ed.)

Sharpe, William F. The Economics of Computers. Columbia University Press, 1969.