| APA | NNRO. (2012, February 17). In Acronym Geek. Retrieved 08:11, February 17, 2012, from http://www.acronymgeek.com/NNRO |
| MLA | "NNRO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/NNRO>. |
| MHRA | 'NNRO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/NNRO> [accessed 17 February 2012] |
| Chicago | "NNRO", http://www.acronymgeek.com/NNRO (accessed February 17, 2012). |
| CBE/CSE | NNRO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/NNRO. |
| Bluebook | NNRO, http://www.acronymgeek.com/NNRO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NNRO, http://www.acronymgeek.com/NNRO (optional description here) (as of Feb. 17, 2012, 08:11). |
| AMA | NNRO. Acronym Geek. February 17, 2012, 08:11. Available at: http://www.acronymgeek.com/NNRO. Accessed February 17, 2012, 08:11. |