| APA | GYSD. (2012, February 16). In Acronym Geek. Retrieved 10:16, February 16, 2012, from http://www.acronymgeek.com/GYSD |
| MLA | "GYSD." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GYSD>. |
| MHRA | 'GYSD', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GYSD> [accessed 16 February 2012] |
| Chicago | "GYSD", http://www.acronymgeek.com/GYSD (accessed February 16, 2012). |
| CBE/CSE | GYSD [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GYSD. |
| Bluebook | GYSD, http://www.acronymgeek.com/GYSD (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GYSD, http://www.acronymgeek.com/GYSD (optional description here) (as of Feb. 16, 2012, 10:16). |
| AMA | GYSD. Acronym Geek. February 16, 2012, 10:16. Available at: http://www.acronymgeek.com/GYSD. Accessed February 16, 2012, 10:16. |