| APA | C4N. (2012, February 11). In Acronym Geek. Retrieved 21:58, February 11, 2012, from http://www.acronymgeek.com/C4N |
| MLA | "C4N." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/C4N>. |
| MHRA | 'C4N', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/C4N> [accessed 11 February 2012] |
| Chicago | "C4N", http://www.acronymgeek.com/C4N (accessed February 11, 2012). |
| CBE/CSE | C4N [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/C4N. |
| Bluebook | C4N, http://www.acronymgeek.com/C4N (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, C4N, http://www.acronymgeek.com/C4N (optional description here) (as of Feb. 11, 2012, 21:58). |
| AMA | C4N. Acronym Geek. February 11, 2012, 21:58. Available at: http://www.acronymgeek.com/C4N. Accessed February 11, 2012, 21:58. |