| APA | OSGS. (2012, February 15). In Acronym Geek. Retrieved 09:55, February 15, 2012, from http://www.acronymgeek.com/OSGS |
| MLA | "OSGS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OSGS>. |
| MHRA | 'OSGS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OSGS> [accessed 15 February 2012] |
| Chicago | "OSGS", http://www.acronymgeek.com/OSGS (accessed February 15, 2012). |
| CBE/CSE | OSGS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OSGS. |
| Bluebook | OSGS, http://www.acronymgeek.com/OSGS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSGS, http://www.acronymgeek.com/OSGS (optional description here) (as of Feb. 15, 2012, 09:55). |
| AMA | OSGS. Acronym Geek. February 15, 2012, 09:55. Available at: http://www.acronymgeek.com/OSGS. Accessed February 15, 2012, 09:55. |