| APA | HRE. (2012, February 13). In Acronym Geek. Retrieved 21:07, February 13, 2012, from http://www.acronymgeek.com/HRE |
| MLA | "HRE." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/HRE>. |
| MHRA | 'HRE', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/HRE> [accessed 13 February 2012] |
| Chicago | "HRE", http://www.acronymgeek.com/HRE (accessed February 13, 2012). |
| CBE/CSE | HRE [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/HRE. |
| Bluebook | HRE, http://www.acronymgeek.com/HRE (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HRE, http://www.acronymgeek.com/HRE (optional description here) (as of Feb. 13, 2012, 21:07). |
| AMA | HRE. Acronym Geek. February 13, 2012, 21:07. Available at: http://www.acronymgeek.com/HRE. Accessed February 13, 2012, 21:07. |