Packard, D. (2005). The HP Way. HarperCollins.
Cita Chicago (17th ed.)Packard, David. The HP Way. New York: HarperCollins, 2005.
Cita MLA (9th ed.)Packard, David. The HP Way. HarperCollins, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.