| APA | NRR. (2012, February 9). In Acronym Geek. Retrieved 10:06, February 9, 2012, from http://www.acronymgeek.com/NRR |
| MLA | "NRR." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/NRR>. |
| MHRA | 'NRR', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/NRR> [accessed 9 February 2012] |
| Chicago | "NRR", http://www.acronymgeek.com/NRR (accessed February 9, 2012). |
| CBE/CSE | NRR [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/NRR. |
| Bluebook | NRR, http://www.acronymgeek.com/NRR (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NRR, http://www.acronymgeek.com/NRR (optional description here) (as of Feb. 9, 2012, 10:06). |
| AMA | NRR. Acronym Geek. February 9, 2012, 10:06. Available at: http://www.acronymgeek.com/NRR. Accessed February 9, 2012, 10:06. |