@book{90195,
	author = {David, Charles Philippe.},
	title = {Hegemony or empire?  the redefinition of US power under George W. Bush},
	publisher = {Ashgate},
	year = {c2006},
	address = {Aldershot (Hampshire, Inglaterra)},
	url = {http://www.loc.gov/catdir/toc/ecip069/2006007251.html}
}