ebrary, Inc, Petty, D., & MacFarland, C. (2012). Citizenship: Practices, types and challenges. Nova Science Publishers.
Chicago-referens (17:e uppl.)ebrary, Inc, Dexter Petty, och Clay MacFarland. Citizenship: Practices, Types and Challenges. Hauppauge, NY: Nova Science Publishers, 2012.
MLA-referens (9:e uppl.)ebrary, Inc, et al. Citizenship: Practices, Types and Challenges. Nova Science Publishers, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.