Παραπομπή APA
Walker, C. J. (1979). Key to principles of cost accounting (2nd.). Plymouth: Macdonald and Evans.
Παραπομπή Chicago StyleWalker, C. J. Key to Principles of Cost Accounting. 2nd. Plymouth: Macdonald and Evans, 1979.
Παραπομπή MLAWalker, C. J. Key to Principles of Cost Accounting. 2nd. Plymouth: Macdonald and Evans, 1979.
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