APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.