| APA | D4R. (2012, February 11). In Acronym Geek. Retrieved 23:12, February 11, 2012, from http://www.acronymgeek.com/D4R |
| MLA | "D4R." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/D4R>. |
| MHRA | 'D4R', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/D4R> [accessed 11 February 2012] |
| Chicago | "D4R", http://www.acronymgeek.com/D4R (accessed February 11, 2012). |
| CBE/CSE | D4R [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/D4R. |
| Bluebook | D4R, http://www.acronymgeek.com/D4R (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, D4R, http://www.acronymgeek.com/D4R (optional description here) (as of Feb. 11, 2012, 23:12). |
| AMA | D4R. Acronym Geek. February 11, 2012, 23:12. Available at: http://www.acronymgeek.com/D4R. Accessed February 11, 2012, 23:12. |