Cita APA (7th ed.)
Hempell, T. (2006). Computers and Productivity: How Firms Make a General Purpose Technology Work. Physica-Verlag HD. https://doi.org/10.1007/3-7908-1648-5
Cita Chicago (17th ed.)
Hempell, Thomas. Computers and Productivity: How Firms Make a General Purpose Technology Work. Heidelberg: Physica-Verlag HD, 2006. https://doi.org/10.1007/3-7908-1648-5.
Cita MLA (9th ed.)
Hempell, Thomas. Computers and Productivity: How Firms Make a General Purpose Technology Work. Physica-Verlag HD, 2006. https://doi.org/10.1007/3-7908-1648-5.
Atenció: Aquestes cites poden no estar 100% correctes.