| APA | ROIE. (2012, February 15). In Acronym Geek. Retrieved 18:09, February 15, 2012, from http://www.acronymgeek.com/ROIE |
| MLA | "ROIE." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ROIE>. |
| MHRA | 'ROIE', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ROIE> [accessed 15 February 2012] |
| Chicago | "ROIE", http://www.acronymgeek.com/ROIE (accessed February 15, 2012). |
| CBE/CSE | ROIE [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ROIE. |
| Bluebook | ROIE, http://www.acronymgeek.com/ROIE (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ROIE, http://www.acronymgeek.com/ROIE (optional description here) (as of Feb. 15, 2012, 18:09). |
| AMA | ROIE. Acronym Geek. February 15, 2012, 18:09. Available at: http://www.acronymgeek.com/ROIE. Accessed February 15, 2012, 18:09. |