| APA | HRPZ. (2012, February 14). In Acronym Geek. Retrieved 12:51, February 14, 2012, from http://www.acronymgeek.com/HRPZ |
| MLA | "HRPZ." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HRPZ>. |
| MHRA | 'HRPZ', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HRPZ> [accessed 14 February 2012] |
| Chicago | "HRPZ", http://www.acronymgeek.com/HRPZ (accessed February 14, 2012). |
| CBE/CSE | HRPZ [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HRPZ. |
| Bluebook | HRPZ, http://www.acronymgeek.com/HRPZ (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HRPZ, http://www.acronymgeek.com/HRPZ (optional description here) (as of Feb. 14, 2012, 12:51). |
| AMA | HRPZ. Acronym Geek. February 14, 2012, 12:51. Available at: http://www.acronymgeek.com/HRPZ. Accessed February 14, 2012, 12:51. |