| APA | XNP. (2012, February 15). In Acronym Geek. Retrieved 03:27, February 15, 2012, from http://www.acronymgeek.com/XNP |
| MLA | "XNP." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/XNP>. |
| MHRA | 'XNP', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/XNP> [accessed 15 February 2012] |
| Chicago | "XNP", http://www.acronymgeek.com/XNP (accessed February 15, 2012). |
| CBE/CSE | XNP [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/XNP. |
| Bluebook | XNP, http://www.acronymgeek.com/XNP (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XNP, http://www.acronymgeek.com/XNP (optional description here) (as of Feb. 15, 2012, 03:27). |
| AMA | XNP. Acronym Geek. February 15, 2012, 03:27. Available at: http://www.acronymgeek.com/XNP. Accessed February 15, 2012, 03:27. |