Drury, C. (2012). Colin Drury Management and Cost Accounting (8th.). Cengage.
Lua i Stíl Chicago (17ú heag.)Drury, Colin. Colin Drury Management and Cost Accounting. 8th. Cengage, 2012.
Lua MLA (9ú heag.)Drury, Colin. Colin Drury Management and Cost Accounting. 8th. Cengage, 2012.
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