Pratten, C. (1976). Labour productivity differentials: Within international companies. Cambridge University Pr.
Chicago-viite (17. p.)Pratten, C.F. Labour Productivity Differentials: Within International Companies. Cambridge: Cambridge University Pr, 1976.
MLA-viite (9. p.)Pratten, C.F. Labour Productivity Differentials: Within International Companies. Cambridge University Pr, 1976.
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