| APA | ACEI. (2012, February 16). In Acronym Geek. Retrieved 20:09, February 16, 2012, from http://www.acronymgeek.com/ACEI |
| MLA | "ACEI." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ACEI>. |
| MHRA | 'ACEI', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ACEI> [accessed 16 February 2012] |
| Chicago | "ACEI", http://www.acronymgeek.com/ACEI (accessed February 16, 2012). |
| CBE/CSE | ACEI [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ACEI. |
| Bluebook | ACEI, http://www.acronymgeek.com/ACEI (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ACEI, http://www.acronymgeek.com/ACEI (optional description here) (as of Feb. 16, 2012, 20:09). |
| AMA | ACEI. Acronym Geek. February 16, 2012, 20:09. Available at: http://www.acronymgeek.com/ACEI. Accessed February 16, 2012, 20:09. |