| APA | HRZ. (2012, February 13). In Acronym Geek. Retrieved 23:33, February 13, 2012, from http://www.acronymgeek.com/HRZ |
| MLA | "HRZ." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/HRZ>. |
| MHRA | 'HRZ', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/HRZ> [accessed 13 February 2012] |
| Chicago | "HRZ", http://www.acronymgeek.com/HRZ (accessed February 13, 2012). |
| CBE/CSE | HRZ [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/HRZ. |
| Bluebook | HRZ, http://www.acronymgeek.com/HRZ (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HRZ, http://www.acronymgeek.com/HRZ (optional description here) (as of Feb. 13, 2012, 23:33). |
| AMA | HRZ. Acronym Geek. February 13, 2012, 23:33. Available at: http://www.acronymgeek.com/HRZ. Accessed February 13, 2012, 23:33. |