| APA | NPOQ. (2012, February 16). In Acronym Geek. Retrieved 14:55, February 16, 2012, from http://www.acronymgeek.com/NPOQ |
| MLA | "NPOQ." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/NPOQ>. |
| MHRA | 'NPOQ', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/NPOQ> [accessed 16 February 2012] |
| Chicago | "NPOQ", http://www.acronymgeek.com/NPOQ (accessed February 16, 2012). |
| CBE/CSE | NPOQ [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/NPOQ. |
| Bluebook | NPOQ, http://www.acronymgeek.com/NPOQ (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NPOQ, http://www.acronymgeek.com/NPOQ (optional description here) (as of Feb. 16, 2012, 14:55). |
| AMA | NPOQ. Acronym Geek. February 16, 2012, 14:55. Available at: http://www.acronymgeek.com/NPOQ. Accessed February 16, 2012, 14:55. |