Salter, W. E. G. (1969). Productivity and technical change. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoSalter, W. E. G. Productivity and Technical Change. Cambridge: Cambridge University Press, 1969.
Deismireacht MLASalter, W. E. G. Productivity and Technical Change. Cambridge: Cambridge University Press, 1969.
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