| APA | UDR. (2012, February 14). In Acronym Geek. Retrieved 12:11, February 14, 2012, from http://www.acronymgeek.com/UDR |
| MLA | "UDR." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/UDR>. |
| MHRA | 'UDR', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/UDR> [accessed 14 February 2012] |
| Chicago | "UDR", http://www.acronymgeek.com/UDR (accessed February 14, 2012). |
| CBE/CSE | UDR [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/UDR. |
| Bluebook | UDR, http://www.acronymgeek.com/UDR (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UDR, http://www.acronymgeek.com/UDR (optional description here) (as of Feb. 14, 2012, 12:11). |
| AMA | UDR. Acronym Geek. February 14, 2012, 12:11. Available at: http://www.acronymgeek.com/UDR. Accessed February 14, 2012, 12:11. |