RINGLAND GILL. (2002). SCENARIOS IN BUSINESS. JOHN WILEY AND SONS.
Chicago-čujuhus (17. p.)RINGLAND GILL. SCENARIOS IN BUSINESS. U K: JOHN WILEY AND SONS, 2002.
MLA-čujuhus (9. p.)RINGLAND GILL. SCENARIOS IN BUSINESS. JOHN WILEY AND SONS, 2002.
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