The Challenge of democracy : american goverment in global politics 13th edition

 Janda, Kenneth; Berry, Jeffrey M.; Goldman, Jerry; Schildkraut, Deborah;

USA : Cengage Learning , 2016

The challenge of democracy : American government in global politics

 Janda, Kenneth; Berry, Jeffrey M.; Goldman, Jerry; Schildkraut, Deborah;

Amerika : Cengage Learning , 2014