Kerr, S. (1997). Ultimate Rewards. Harvard Business School Press.
Cita Chicago (17th ed.)Kerr, Steven. Ultimate Rewards. Boston: Harvard Business School Press, 1997.
Cita MLA (9th ed.)Kerr, Steven. Ultimate Rewards. Harvard Business School Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.