Wilson, J. R., & Sharples, S. (2015). Evaluation of human work (Fourth edition.). CRC Press.
Cita Chicago (17th ed.)Wilson, John R., i Sarah Sharples. Evaluation of Human Work. Fourth edition. Boca Raton, FL: CRC Press, 2015.
Cita MLA (9th ed.)Wilson, John R., i Sarah Sharples. Evaluation of Human Work. Fourth edition. CRC Press, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.