| APA | A4CE. (2012, February 14). In Acronym Geek. Retrieved 14:29, February 14, 2012, from http://www.acronymgeek.com/A4CE |
| MLA | "A4CE." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/A4CE>. |
| MHRA | 'A4CE', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/A4CE> [accessed 14 February 2012] |
| Chicago | "A4CE", http://www.acronymgeek.com/A4CE (accessed February 14, 2012). |
| CBE/CSE | A4CE [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/A4CE. |
| Bluebook | A4CE, http://www.acronymgeek.com/A4CE (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, A4CE, http://www.acronymgeek.com/A4CE (optional description here) (as of Feb. 14, 2012, 14:29). |
| AMA | A4CE. Acronym Geek. February 14, 2012, 14:29. Available at: http://www.acronymgeek.com/A4CE. Accessed February 14, 2012, 14:29. |