(2011). Contemporary economics. [Warsaw, Poland]: Vizja Press & IT : Faculty of Management and Finance, University of Finance and Management in Warsaw.
استشهاد بنمط شيكاغوContemporary Economics. [Warsaw, Poland]: Vizja Press & IT : Faculty of Management and Finance, University of Finance and Management in Warsaw, 2011.
MLA استشهادContemporary Economics. [Warsaw, Poland]: Vizja Press & IT : Faculty of Management and Finance, University of Finance and Management in Warsaw, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.