| APA | OIGI. (2012, February 15). In Acronym Geek. Retrieved 20:28, February 15, 2012, from http://www.acronymgeek.com/OIGI |
| MLA | "OIGI." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OIGI>. |
| MHRA | 'OIGI', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OIGI> [accessed 15 February 2012] |
| Chicago | "OIGI", http://www.acronymgeek.com/OIGI (accessed February 15, 2012). |
| CBE/CSE | OIGI [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OIGI. |
| Bluebook | OIGI, http://www.acronymgeek.com/OIGI (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OIGI, http://www.acronymgeek.com/OIGI (optional description here) (as of Feb. 15, 2012, 20:28). |
| AMA | OIGI. Acronym Geek. February 15, 2012, 20:28. Available at: http://www.acronymgeek.com/OIGI. Accessed February 15, 2012, 20:28. |