| APA | DDYJ. (2012, February 16). In Acronym Geek. Retrieved 06:57, February 16, 2012, from http://www.acronymgeek.com/DDYJ |
| MLA | "DDYJ." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/DDYJ>. |
| MHRA | 'DDYJ', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/DDYJ> [accessed 16 February 2012] |
| Chicago | "DDYJ", http://www.acronymgeek.com/DDYJ (accessed February 16, 2012). |
| CBE/CSE | DDYJ [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/DDYJ. |
| Bluebook | DDYJ, http://www.acronymgeek.com/DDYJ (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DDYJ, http://www.acronymgeek.com/DDYJ (optional description here) (as of Feb. 16, 2012, 06:57). |
| AMA | DDYJ. Acronym Geek. February 16, 2012, 06:57. Available at: http://www.acronymgeek.com/DDYJ. Accessed February 16, 2012, 06:57. |