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.
MLA引文Salter, W. E. G. Productivity and Technical Change. Cambridge: Cambridge University Press, 1969.
警告:这些引文格式不一定是100%准确.