Speight. Economics And Industrial Efficiency An Introduction To Managerial Economics Speight. Macmillan.
Chicago-viite (17. p.)Speight. Economics And Industrial Efficiency An Introduction To Managerial Economics Speight. Macmillan.
MLA-viite (8. p.)Speight. Economics And Industrial Efficiency An Introduction To Managerial Economics Speight. Macmillan.
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