| APA | PFNX. (2012, February 16). In Acronym Geek. Retrieved 02:11, February 16, 2012, from http://www.acronymgeek.com/PFNX |
| MLA | "PFNX." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PFNX>. |
| MHRA | 'PFNX', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PFNX> [accessed 16 February 2012] |
| Chicago | "PFNX", http://www.acronymgeek.com/PFNX (accessed February 16, 2012). |
| CBE/CSE | PFNX [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PFNX. |
| Bluebook | PFNX, http://www.acronymgeek.com/PFNX (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PFNX, http://www.acronymgeek.com/PFNX (optional description here) (as of Feb. 16, 2012, 02:11). |
| AMA | PFNX. Acronym Geek. February 16, 2012, 02:11. Available at: http://www.acronymgeek.com/PFNX. Accessed February 16, 2012, 02:11. |