Dyfyniad APA

WAHL, S. V. Invesment appraisal and economic evaluation of mining enterprise. Gulf Publication Co.

Dyfyniad Arddull Chicago

WAHL, Siesfried Von. Invesment Appraisal and Economic Evaluation of Mining Enterprise. Gulf Publication Co.

Dyfyniad MLA

WAHL, Siesfried Von. Invesment Appraisal and Economic Evaluation of Mining Enterprise. Gulf Publication Co.

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