| APA | AYD. (2012, February 14). In Acronym Geek. Retrieved 07:45, February 14, 2012, from http://www.acronymgeek.com/AYD |
| MLA | "AYD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/AYD>. |
| MHRA | 'AYD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/AYD> [accessed 14 February 2012] |
| Chicago | "AYD", http://www.acronymgeek.com/AYD (accessed February 14, 2012). |
| CBE/CSE | AYD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/AYD. |
| Bluebook | AYD, http://www.acronymgeek.com/AYD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, AYD, http://www.acronymgeek.com/AYD (optional description here) (as of Feb. 14, 2012, 07:45). |
| AMA | AYD. Acronym Geek. February 14, 2012, 07:45. Available at: http://www.acronymgeek.com/AYD. Accessed February 14, 2012, 07:45. |