@book{73712,
	author = {Ramage, John D. and Bean, John C.},
	title = {Writing arguments  a rhetoric with readings},
	publisher = {Pearson Longman},
	year = {2010},
	address = {Nueva York (Estados Unidos)},
	edition = {8th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0826/2008036898.html}
}