@techreport{oai:ismrepo.ism.ac.jp:00033503,
 author = {Matsumoto, Wataru and Nikaido, Kousuke},
 month = {Feb},
 note = {統計数理研究所研究リポート100, Research report. General series 100, Principal Investigator\
Matsumoto, Wataru, Research Collaborator\
Yoshino, Ryozo, Maeda, Tadahiko, Hayashi, Fumi, Couper, Mick P., Yamaoka, Kazue, Nikaido, Kousuke, Fujita, Taisuke, Shibai, Koyohisa, Nishitate, Takashi, Aida, Masahiko, Yoshioka, Takayuki},
 title = {Cross-national Comparison of Political Participation and Social Contribution : USA Survey Report ─English Edition─},
 year = {2010}
}