WAHL, S. V. Invesment appraisal and economic evaluation of mining enterprise. Gulf Publication Co.
Čikaški stil citiranja (17. izdanje)WAHL, Siesfried Von. Invesment Appraisal and Economic Evaluation of Mining Enterprise. Gulf Publication Co.
MLA način citiranja (8. izdanje)WAHL, Siesfried Von. Invesment Appraisal and Economic Evaluation of Mining Enterprise. Gulf Publication Co.
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