| APA | D2D. (2012, February 9). In Acronym Geek. Retrieved 20:57, February 9, 2012, from http://www.acronymgeek.com/D2D |
| MLA | "D2D." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/D2D>. |
| MHRA | 'D2D', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/D2D> [accessed 9 February 2012] |
| Chicago | "D2D", http://www.acronymgeek.com/D2D (accessed February 9, 2012). |
| CBE/CSE | D2D [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/D2D. |
| Bluebook | D2D, http://www.acronymgeek.com/D2D (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, D2D, http://www.acronymgeek.com/D2D (optional description here) (as of Feb. 9, 2012, 20:57). |
| AMA | D2D. Acronym Geek. February 9, 2012, 20:57. Available at: http://www.acronymgeek.com/D2D. Accessed February 9, 2012, 20:57. |