| APA | DRS. (2012, February 9). In Acronym Geek. Retrieved 19:44, February 9, 2012, from http://www.acronymgeek.com/DRS |
| MLA | "DRS." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/DRS>. |
| MHRA | 'DRS', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/DRS> [accessed 9 February 2012] |
| Chicago | "DRS", http://www.acronymgeek.com/DRS (accessed February 9, 2012). |
| CBE/CSE | DRS [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/DRS. |
| Bluebook | DRS, http://www.acronymgeek.com/DRS (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DRS, http://www.acronymgeek.com/DRS (optional description here) (as of Feb. 9, 2012, 19:44). |
| AMA | DRS. Acronym Geek. February 9, 2012, 19:44. Available at: http://www.acronymgeek.com/DRS. Accessed February 9, 2012, 19:44. |