| APA | YDD. (2012, February 11). In Acronym Geek. Retrieved 22:56, February 11, 2012, from http://www.acronymgeek.com/YDD |
| MLA | "YDD." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/YDD>. |
| MHRA | 'YDD', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/YDD> [accessed 11 February 2012] |
| Chicago | "YDD", http://www.acronymgeek.com/YDD (accessed February 11, 2012). |
| CBE/CSE | YDD [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/YDD. |
| Bluebook | YDD, http://www.acronymgeek.com/YDD (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, YDD, http://www.acronymgeek.com/YDD (optional description here) (as of Feb. 11, 2012, 22:56). |
| AMA | YDD. Acronym Geek. February 11, 2012, 22:56. Available at: http://www.acronymgeek.com/YDD. Accessed February 11, 2012, 22:56. |