| APA | ARNPEI. (2012, February 12). In Acronym Geek. Retrieved 08:41, February 12, 2012, from http://www.acronymgeek.com/ARNPEI |
| MLA | "ARNPEI." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/ARNPEI>. |
| MHRA | 'ARNPEI', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/ARNPEI> [accessed 12 February 2012] |
| Chicago | "ARNPEI", http://www.acronymgeek.com/ARNPEI (accessed February 12, 2012). |
| CBE/CSE | ARNPEI [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/ARNPEI. |
| Bluebook | ARNPEI, http://www.acronymgeek.com/ARNPEI (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ARNPEI, http://www.acronymgeek.com/ARNPEI (optional description here) (as of Feb. 12, 2012, 08:41). |
| AMA | ARNPEI. Acronym Geek. February 12, 2012, 08:41. Available at: http://www.acronymgeek.com/ARNPEI. Accessed February 12, 2012, 08:41. |