| APA | OIGO. (2012, February 15). In Acronym Geek. Retrieved 10:06, February 15, 2012, from http://www.acronymgeek.com/OIGO |
| MLA | "OIGO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OIGO>. |
| MHRA | 'OIGO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OIGO> [accessed 15 February 2012] |
| Chicago | "OIGO", http://www.acronymgeek.com/OIGO (accessed February 15, 2012). |
| CBE/CSE | OIGO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OIGO. |
| Bluebook | OIGO, http://www.acronymgeek.com/OIGO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OIGO, http://www.acronymgeek.com/OIGO (optional description here) (as of Feb. 15, 2012, 10:06). |
| AMA | OIGO. Acronym Geek. February 15, 2012, 10:06. Available at: http://www.acronymgeek.com/OIGO. Accessed February 15, 2012, 10:06. |