| APA | ROIH. (2012, February 16). In Acronym Geek. Retrieved 15:37, February 16, 2012, from http://www.acronymgeek.com/ROIH |
| MLA | "ROIH." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ROIH>. |
| MHRA | 'ROIH', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ROIH> [accessed 16 February 2012] |
| Chicago | "ROIH", http://www.acronymgeek.com/ROIH (accessed February 16, 2012). |
| CBE/CSE | ROIH [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ROIH. |
| Bluebook | ROIH, http://www.acronymgeek.com/ROIH (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ROIH, http://www.acronymgeek.com/ROIH (optional description here) (as of Feb. 16, 2012, 15:37). |
| AMA | ROIH. Acronym Geek. February 16, 2012, 15:37. Available at: http://www.acronymgeek.com/ROIH. Accessed February 16, 2012, 15:37. |