| APA | GYD. (2012, February 11). In Acronym Geek. Retrieved 10:20, February 11, 2012, from http://www.acronymgeek.com/GYD |
| MLA | "GYD." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/GYD>. |
| MHRA | 'GYD', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/GYD> [accessed 11 February 2012] |
| Chicago | "GYD", http://www.acronymgeek.com/GYD (accessed February 11, 2012). |
| CBE/CSE | GYD [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/GYD. |
| Bluebook | GYD, http://www.acronymgeek.com/GYD (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GYD, http://www.acronymgeek.com/GYD (optional description here) (as of Feb. 11, 2012, 10:20). |
| AMA | GYD. Acronym Geek. February 11, 2012, 10:20. Available at: http://www.acronymgeek.com/GYD. Accessed February 11, 2012, 10:20. |