Epping, R.Ch. The 21st - Century Economy : a beginner's guide : with 101 easy-to-learn tools for surviving and thriving in the new global marketplace / Randy Charles Epping. - New York : Vintage Books, 2009. - xii, 316 p. ISBN: 9780307387905 Subjects--Index Terms: ეკონომიკა 21-ე საუკუნის ეკონომიკა Universal Decimal Class. No.: 33