| APA | ROO. (2012, February 13). In Acronym Geek. Retrieved 21:18, February 13, 2012, from http://www.acronymgeek.com/ROO |
| MLA | "ROO." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/ROO>. |
| MHRA | 'ROO', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/ROO> [accessed 13 February 2012] |
| Chicago | "ROO", http://www.acronymgeek.com/ROO (accessed February 13, 2012). |
| CBE/CSE | ROO [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/ROO. |
| Bluebook | ROO, http://www.acronymgeek.com/ROO (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ROO, http://www.acronymgeek.com/ROO (optional description here) (as of Feb. 13, 2012, 21:18). |
| AMA | ROO. Acronym Geek. February 13, 2012, 21:18. Available at: http://www.acronymgeek.com/ROO. Accessed February 13, 2012, 21:18. |