| APA | NROP. (2012, February 16). In Acronym Geek. Retrieved 10:08, February 16, 2012, from http://www.acronymgeek.com/NROP |
| MLA | "NROP." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/NROP>. |
| MHRA | 'NROP', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/NROP> [accessed 16 February 2012] |
| Chicago | "NROP", http://www.acronymgeek.com/NROP (accessed February 16, 2012). |
| CBE/CSE | NROP [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/NROP. |
| Bluebook | NROP, http://www.acronymgeek.com/NROP (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NROP, http://www.acronymgeek.com/NROP (optional description here) (as of Feb. 16, 2012, 10:08). |
| AMA | NROP. Acronym Geek. February 16, 2012, 10:08. Available at: http://www.acronymgeek.com/NROP. Accessed February 16, 2012, 10:08. |