Mundel, M. E., & Danner, D. (1994). Motion and time study: Improving productivity (7th ed.). Prentice Hall.
Cita Chicago (17th ed.)Mundel, Marvin Everett, i David Danner. Motion and Time Study: Improving Productivity. 7th ed. Englewood Cliffs, N.J: Prentice Hall, 1994.
Cita MLA (9th ed.)Mundel, Marvin Everett, i David Danner. Motion and Time Study: Improving Productivity. 7th ed. Prentice Hall, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.