| APA | OIGL. (2012, February 17). In Acronym Geek. Retrieved 07:09, February 17, 2012, from http://www.acronymgeek.com/OIGL |
| MLA | "OIGL." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/OIGL>. |
| MHRA | 'OIGL', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/OIGL> [accessed 17 February 2012] |
| Chicago | "OIGL", http://www.acronymgeek.com/OIGL (accessed February 17, 2012). |
| CBE/CSE | OIGL [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/OIGL. |
| Bluebook | OIGL, http://www.acronymgeek.com/OIGL (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OIGL, http://www.acronymgeek.com/OIGL (optional description here) (as of Feb. 17, 2012, 07:09). |
| AMA | OIGL. Acronym Geek. February 17, 2012, 07:09. Available at: http://www.acronymgeek.com/OIGL. Accessed February 17, 2012, 07:09. |