Barnes, R. M. (1968). Motion and time study: Design and measurement of work (6th ed.). John Wiley & Sons.
Styl ChicagoBarnes, Ralph M. Motion and Time Study: Design and Measurement of Work. 6th ed. New York: John Wiley & Sons, 1968.
Citace podle MLABarnes, Ralph M. Motion and Time Study: Design and Measurement of Work. 6th ed. John Wiley & Sons, 1968.
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