| APA | HZS. (2012, February 13). In Acronym Geek. Retrieved 21:15, February 13, 2012, from http://www.acronymgeek.com/HZS |
| MLA | "HZS." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/HZS>. |
| MHRA | 'HZS', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/HZS> [accessed 13 February 2012] |
| Chicago | "HZS", http://www.acronymgeek.com/HZS (accessed February 13, 2012). |
| CBE/CSE | HZS [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/HZS. |
| Bluebook | HZS, http://www.acronymgeek.com/HZS (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HZS, http://www.acronymgeek.com/HZS (optional description here) (as of Feb. 13, 2012, 21:15). |
| AMA | HZS. Acronym Geek. February 13, 2012, 21:15. Available at: http://www.acronymgeek.com/HZS. Accessed February 13, 2012, 21:15. |