| APA | NROI. (2012, February 14). In Acronym Geek. Retrieved 18:26, February 14, 2012, from http://www.acronymgeek.com/NROI |
| MLA | "NROI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/NROI>. |
| MHRA | 'NROI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/NROI> [accessed 14 February 2012] |
| Chicago | "NROI", http://www.acronymgeek.com/NROI (accessed February 14, 2012). |
| CBE/CSE | NROI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/NROI. |
| Bluebook | NROI, http://www.acronymgeek.com/NROI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NROI, http://www.acronymgeek.com/NROI (optional description here) (as of Feb. 14, 2012, 18:26). |
| AMA | NROI. Acronym Geek. February 14, 2012, 18:26. Available at: http://www.acronymgeek.com/NROI. Accessed February 14, 2012, 18:26. |