| APA | XPIF. (2012, February 16). In Acronym Geek. Retrieved 04:20, February 16, 2012, from http://www.acronymgeek.com/XPIF |
| MLA | "XPIF." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/XPIF>. |
| MHRA | 'XPIF', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/XPIF> [accessed 16 February 2012] |
| Chicago | "XPIF", http://www.acronymgeek.com/XPIF (accessed February 16, 2012). |
| CBE/CSE | XPIF [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/XPIF. |
| Bluebook | XPIF, http://www.acronymgeek.com/XPIF (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XPIF, http://www.acronymgeek.com/XPIF (optional description here) (as of Feb. 16, 2012, 04:20). |
| AMA | XPIF. Acronym Geek. February 16, 2012, 04:20. Available at: http://www.acronymgeek.com/XPIF. Accessed February 16, 2012, 04:20. |