Barnes, R. M. (1968). Motion And Time Study: Design and Measurement of Work (6th ed.). John Wiley.
Čikaški stil citiranjaBarnes, Ralph M. Motion And Time Study: Design and Measurement of Work. 6th ed. New York: John Wiley, 1968.
MLA način citiranjaBarnes, Ralph M. Motion And Time Study: Design and Measurement of Work. 6th ed. John Wiley, 1968.
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