Epping, R. C. (2009). The 21st-Century economy: A beginner's guide; with 101 easy-to-learb tools for surviving and thriving in the new global marketplace. Randon House, Inc.
Cita Chicago (17th ed.)Epping, Randy Charles. The 21st-Century Economy: A Beginner's Guide; with 101 Easy-to-learb Tools for Surviving and Thriving in the New Global Marketplace. New York: Randon House, Inc, 2009.
Cita MLA (9th ed.)Epping, Randy Charles. The 21st-Century Economy: A Beginner's Guide; with 101 Easy-to-learb Tools for Surviving and Thriving in the New Global Marketplace. Randon House, Inc, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.