Leanne Shel. (2010). Leadership of Barak Obama way. Tata McGraw Hill.
Chicago-čujuhus (17. p.)Leanne Shel. Leadership of Barak Obama Way. New Delhi: Tata McGraw Hill, 2010.
MLA-čujuhus (9. p.)Leanne Shel. Leadership of Barak Obama Way. Tata McGraw Hill, 2010.
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