ebrary, Inc. (2008). Opportunity 08: Independent ideas for America's next president (2nd ed.). Brookings Institution Press.
Cita Chicago (17th ed.)ebrary, Inc. Opportunity 08: Independent Ideas for America's Next President. 2nd ed. Washington, D.C.: Brookings Institution Press, 2008.
Cita MLA (9th ed.)ebrary, Inc. Opportunity 08: Independent Ideas for America's Next President. 2nd ed. Brookings Institution Press, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.