| APA | OGA. (2012, February 14). In Acronym Geek. Retrieved 20:31, February 14, 2012, from http://www.acronymgeek.com/OGA |
| MLA | "OGA." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OGA>. |
| MHRA | 'OGA', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OGA> [accessed 14 February 2012] |
| Chicago | "OGA", http://www.acronymgeek.com/OGA (accessed February 14, 2012). |
| CBE/CSE | OGA [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OGA. |
| Bluebook | OGA, http://www.acronymgeek.com/OGA (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OGA, http://www.acronymgeek.com/OGA (optional description here) (as of Feb. 14, 2012, 20:31). |
| AMA | OGA. Acronym Geek. February 14, 2012, 20:31. Available at: http://www.acronymgeek.com/OGA. Accessed February 14, 2012, 20:31. |