| APA | OTRR. (2012, February 16). In Acronym Geek. Retrieved 09:35, February 16, 2012, from http://www.acronymgeek.com/OTRR |
| MLA | "OTRR." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OTRR>. |
| MHRA | 'OTRR', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OTRR> [accessed 16 February 2012] |
| Chicago | "OTRR", http://www.acronymgeek.com/OTRR (accessed February 16, 2012). |
| CBE/CSE | OTRR [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OTRR. |
| Bluebook | OTRR, http://www.acronymgeek.com/OTRR (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OTRR, http://www.acronymgeek.com/OTRR (optional description here) (as of Feb. 16, 2012, 09:35). |
| AMA | OTRR. Acronym Geek. February 16, 2012, 09:35. Available at: http://www.acronymgeek.com/OTRR. Accessed February 16, 2012, 09:35. |