| APA | HREE. (2012, February 15). In Acronym Geek. Retrieved 04:37, February 15, 2012, from http://www.acronymgeek.com/HREE |
| MLA | "HREE." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HREE>. |
| MHRA | 'HREE', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HREE> [accessed 15 February 2012] |
| Chicago | "HREE", http://www.acronymgeek.com/HREE (accessed February 15, 2012). |
| CBE/CSE | HREE [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HREE. |
| Bluebook | HREE, http://www.acronymgeek.com/HREE (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HREE, http://www.acronymgeek.com/HREE (optional description here) (as of Feb. 15, 2012, 04:37). |
| AMA | HREE. Acronym Geek. February 15, 2012, 04:37. Available at: http://www.acronymgeek.com/HREE. Accessed February 15, 2012, 04:37. |