| APA | USRK. (2012, February 16). In Acronym Geek. Retrieved 09:47, February 16, 2012, from http://www.acronymgeek.com/USRK |
| MLA | "USRK." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/USRK>. |
| MHRA | 'USRK', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/USRK> [accessed 16 February 2012] |
| Chicago | "USRK", http://www.acronymgeek.com/USRK (accessed February 16, 2012). |
| CBE/CSE | USRK [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/USRK. |
| Bluebook | USRK, http://www.acronymgeek.com/USRK (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, USRK, http://www.acronymgeek.com/USRK (optional description here) (as of Feb. 16, 2012, 09:47). |
| AMA | USRK. Acronym Geek. February 16, 2012, 09:47. Available at: http://www.acronymgeek.com/USRK. Accessed February 16, 2012, 09:47. |