| APA | HRDZ. (2012, February 15). In Acronym Geek. Retrieved 18:54, February 15, 2012, from http://www.acronymgeek.com/HRDZ |
| MLA | "HRDZ." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HRDZ>. |
| MHRA | 'HRDZ', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HRDZ> [accessed 15 February 2012] |
| Chicago | "HRDZ", http://www.acronymgeek.com/HRDZ (accessed February 15, 2012). |
| CBE/CSE | HRDZ [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HRDZ. |
| Bluebook | HRDZ, http://www.acronymgeek.com/HRDZ (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HRDZ, http://www.acronymgeek.com/HRDZ (optional description here) (as of Feb. 15, 2012, 18:54). |
| AMA | HRDZ. Acronym Geek. February 15, 2012, 18:54. Available at: http://www.acronymgeek.com/HRDZ. Accessed February 15, 2012, 18:54. |