| APA | R-D. (2012, February 14). In Acronym Geek. Retrieved 07:11, February 14, 2012, from http://www.acronymgeek.com/R-D |
| MLA | "R-D." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/R-D>. |
| MHRA | 'R-D', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/R-D> [accessed 14 February 2012] |
| Chicago | "R-D", http://www.acronymgeek.com/R-D (accessed February 14, 2012). |
| CBE/CSE | R-D [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/R-D. |
| Bluebook | R-D, http://www.acronymgeek.com/R-D (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, R-D, http://www.acronymgeek.com/R-D (optional description here) (as of Feb. 14, 2012, 07:11). |
| AMA | R-D. Acronym Geek. February 14, 2012, 07:11. Available at: http://www.acronymgeek.com/R-D. Accessed February 14, 2012, 07:11. |