Whitehead, G. (1997). Book-keeping, made simple (5th edition.). Oxford: Butterworth-Heinemann.
Παραπομπή Chicago StyleWhitehead, Geoffrey. Book-keeping, Made Simple. 5th edition. Oxford: Butterworth-Heinemann, 1997.
Παραπομπή MLAWhitehead, Geoffrey. Book-keeping, Made Simple. 5th edition. Oxford: Butterworth-Heinemann, 1997.
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