| APA | OLIH. (2012, February 15). In Acronym Geek. Retrieved 19:51, February 15, 2012, from http://www.acronymgeek.com/OLIH |
| MLA | "OLIH." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OLIH>. |
| MHRA | 'OLIH', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OLIH> [accessed 15 February 2012] |
| Chicago | "OLIH", http://www.acronymgeek.com/OLIH (accessed February 15, 2012). |
| CBE/CSE | OLIH [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OLIH. |
| Bluebook | OLIH, http://www.acronymgeek.com/OLIH (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OLIH, http://www.acronymgeek.com/OLIH (optional description here) (as of Feb. 15, 2012, 19:51). |
| AMA | OLIH. Acronym Geek. February 15, 2012, 19:51. Available at: http://www.acronymgeek.com/OLIH. Accessed February 15, 2012, 19:51. |