| APA | NZOP. (2012, February 17). In Acronym Geek. Retrieved 01:26, February 17, 2012, from http://www.acronymgeek.com/NZOP |
| MLA | "NZOP." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/NZOP>. |
| MHRA | 'NZOP', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/NZOP> [accessed 17 February 2012] |
| Chicago | "NZOP", http://www.acronymgeek.com/NZOP (accessed February 17, 2012). |
| CBE/CSE | NZOP [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/NZOP. |
| Bluebook | NZOP, http://www.acronymgeek.com/NZOP (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NZOP, http://www.acronymgeek.com/NZOP (optional description here) (as of Feb. 17, 2012, 01:26). |
| AMA | NZOP. Acronym Geek. February 17, 2012, 01:26. Available at: http://www.acronymgeek.com/NZOP. Accessed February 17, 2012, 01:26. |