APA (7th ed.) Zitazioa
Obama, B. Change We Can Believe in: Barack Obama's Plan to Renew America's Promise. Three Rivers.
Chicago Style (17th ed.) Zitazioa
Obama, Barack. Change We Can Believe in: Barack Obama's Plan to Renew America's Promise. Nueva York, EUA: Three Rivers.
MLA (9th ed.) Zitazioa
Obama, Barack. Change We Can Believe in: Barack Obama's Plan to Renew America's Promise. Three Rivers.
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