WAHL, S. V. Invesment appraisal and economic evaluation of mining enterprise. Gulf Publication Co.
Chicago-viite (17. p.)WAHL, Siesfried Von. Invesment Appraisal and Economic Evaluation of Mining Enterprise. Gulf Publication Co.
MLA-viite (8. p.)WAHL, Siesfried Von. Invesment Appraisal and Economic Evaluation of Mining Enterprise. Gulf Publication Co.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.