| APA | C2A. (2012, February 14). In Acronym Geek. Retrieved 10:12, February 14, 2012, from http://www.acronymgeek.com/C2A |
| MLA | "C2A." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/C2A>. |
| MHRA | 'C2A', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/C2A> [accessed 14 February 2012] |
| Chicago | "C2A", http://www.acronymgeek.com/C2A (accessed February 14, 2012). |
| CBE/CSE | C2A [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/C2A. |
| Bluebook | C2A, http://www.acronymgeek.com/C2A (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, C2A, http://www.acronymgeek.com/C2A (optional description here) (as of Feb. 14, 2012, 10:12). |
| AMA | C2A. Acronym Geek. February 14, 2012, 10:12. Available at: http://www.acronymgeek.com/C2A. Accessed February 14, 2012, 10:12. |