Bueschel, R. T. Commercial time-sharing services and utilities. American Management Association.
Cita Chicago (17th ed.)Bueschel, Richard T. Commercial Time-sharing Services and Utilities. New York: American Management Association.
Cita MLA (9th ed.)Bueschel, Richard T. Commercial Time-sharing Services and Utilities. American Management Association.
Atenció: Aquestes cites poden no estar 100% correctes.