| APA | HRHA. (2012, February 15). In Acronym Geek. Retrieved 20:52, February 15, 2012, from http://www.acronymgeek.com/HRHA |
| MLA | "HRHA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HRHA>. |
| MHRA | 'HRHA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HRHA> [accessed 15 February 2012] |
| Chicago | "HRHA", http://www.acronymgeek.com/HRHA (accessed February 15, 2012). |
| CBE/CSE | HRHA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HRHA. |
| Bluebook | HRHA, http://www.acronymgeek.com/HRHA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HRHA, http://www.acronymgeek.com/HRHA (optional description here) (as of Feb. 15, 2012, 20:52). |
| AMA | HRHA. Acronym Geek. February 15, 2012, 20:52. Available at: http://www.acronymgeek.com/HRHA. Accessed February 15, 2012, 20:52. |