Dyfyniad APA

NIE NICHOLSON, R. (1969). Economic statistics and economic problems. McGraw-Hill.

Dyfyniad Arddull Chicago

NIE NICHOLSON, R.J. Economic Statistics and Economic Problems. London: McGraw-Hill, 1969.

Dyfyniad MLA

NIE NICHOLSON, R.J. Economic Statistics and Economic Problems. McGraw-Hill, 1969.

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