| APA | CTZN. (2012, February 11). In Acronym Geek. Retrieved 20:33, February 11, 2012, from http://www.acronymgeek.com/CTZN |
| MLA | "CTZN." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/CTZN>. |
| MHRA | 'CTZN', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/CTZN> [accessed 11 February 2012] |
| Chicago | "CTZN", http://www.acronymgeek.com/CTZN (accessed February 11, 2012). |
| CBE/CSE | CTZN [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/CTZN. |
| Bluebook | CTZN, http://www.acronymgeek.com/CTZN (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CTZN, http://www.acronymgeek.com/CTZN (optional description here) (as of Feb. 11, 2012, 20:33). |
| AMA | CTZN. Acronym Geek. February 11, 2012, 20:33. Available at: http://www.acronymgeek.com/CTZN. Accessed February 11, 2012, 20:33. |