| APA | IMPN. (2012, February 14). In Acronym Geek. Retrieved 14:13, February 14, 2012, from http://www.acronymgeek.com/IMPN |
| MLA | "IMPN." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/IMPN>. |
| MHRA | 'IMPN', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/IMPN> [accessed 14 February 2012] |
| Chicago | "IMPN", http://www.acronymgeek.com/IMPN (accessed February 14, 2012). |
| CBE/CSE | IMPN [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/IMPN. |
| Bluebook | IMPN, http://www.acronymgeek.com/IMPN (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IMPN, http://www.acronymgeek.com/IMPN (optional description here) (as of Feb. 14, 2012, 14:13). |
| AMA | IMPN. Acronym Geek. February 14, 2012, 14:13. Available at: http://www.acronymgeek.com/IMPN. Accessed February 14, 2012, 14:13. |