Howard,Michael. (1983). Profits in economic theory. The Macmillan Press Ltd.
Dyfyniad Arddull ChicagoHoward,Michael. Profits in Economic Theory. London: The Macmillan Press Ltd, 1983.
Dyfyniad MLAHoward,Michael. Profits in Economic Theory. The Macmillan Press Ltd, 1983.
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