| APA | DDYM. (2012, February 17). In Acronym Geek. Retrieved 03:46, February 17, 2012, from http://www.acronymgeek.com/DDYM |
| MLA | "DDYM." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/DDYM>. |
| MHRA | 'DDYM', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/DDYM> [accessed 17 February 2012] |
| Chicago | "DDYM", http://www.acronymgeek.com/DDYM (accessed February 17, 2012). |
| CBE/CSE | DDYM [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/DDYM. |
| Bluebook | DDYM, http://www.acronymgeek.com/DDYM (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DDYM, http://www.acronymgeek.com/DDYM (optional description here) (as of Feb. 17, 2012, 03:46). |
| AMA | DDYM. Acronym Geek. February 17, 2012, 03:46. Available at: http://www.acronymgeek.com/DDYM. Accessed February 17, 2012, 03:46. |