| APA | HRRU. (2012, February 16). In Acronym Geek. Retrieved 03:49, February 16, 2012, from http://www.acronymgeek.com/HRRU |
| MLA | "HRRU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HRRU>. |
| MHRA | 'HRRU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HRRU> [accessed 16 February 2012] |
| Chicago | "HRRU", http://www.acronymgeek.com/HRRU (accessed February 16, 2012). |
| CBE/CSE | HRRU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HRRU. |
| Bluebook | HRRU, http://www.acronymgeek.com/HRRU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HRRU, http://www.acronymgeek.com/HRRU (optional description here) (as of Feb. 16, 2012, 03:49). |
| AMA | HRRU. Acronym Geek. February 16, 2012, 03:49. Available at: http://www.acronymgeek.com/HRRU. Accessed February 16, 2012, 03:49. |