| APA | GSDO. (2012, February 14). In Acronym Geek. Retrieved 23:33, February 14, 2012, from http://www.acronymgeek.com/GSDO |
| MLA | "GSDO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GSDO>. |
| MHRA | 'GSDO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GSDO> [accessed 14 February 2012] |
| Chicago | "GSDO", http://www.acronymgeek.com/GSDO (accessed February 14, 2012). |
| CBE/CSE | GSDO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GSDO. |
| Bluebook | GSDO, http://www.acronymgeek.com/GSDO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GSDO, http://www.acronymgeek.com/GSDO (optional description here) (as of Feb. 14, 2012, 23:33). |
| AMA | GSDO. Acronym Geek. February 14, 2012, 23:33. Available at: http://www.acronymgeek.com/GSDO. Accessed February 14, 2012, 23:33. |