| APA | NPOB. (2012, February 14). In Acronym Geek. Retrieved 08:41, February 14, 2012, from http://www.acronymgeek.com/NPOB |
| MLA | "NPOB." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/NPOB>. |
| MHRA | 'NPOB', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/NPOB> [accessed 14 February 2012] |
| Chicago | "NPOB", http://www.acronymgeek.com/NPOB (accessed February 14, 2012). |
| CBE/CSE | NPOB [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/NPOB. |
| Bluebook | NPOB, http://www.acronymgeek.com/NPOB (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NPOB, http://www.acronymgeek.com/NPOB (optional description here) (as of Feb. 14, 2012, 08:41). |
| AMA | NPOB. Acronym Geek. February 14, 2012, 08:41. Available at: http://www.acronymgeek.com/NPOB. Accessed February 14, 2012, 08:41. |