| APA | ZRH. (2012, February 14). In Acronym Geek. Retrieved 03:49, February 14, 2012, from http://www.acronymgeek.com/ZRH |
| MLA | "ZRH." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ZRH>. |
| MHRA | 'ZRH', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ZRH> [accessed 14 February 2012] |
| Chicago | "ZRH", http://www.acronymgeek.com/ZRH (accessed February 14, 2012). |
| CBE/CSE | ZRH [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ZRH. |
| Bluebook | ZRH, http://www.acronymgeek.com/ZRH (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZRH, http://www.acronymgeek.com/ZRH (optional description here) (as of Feb. 14, 2012, 03:49). |
| AMA | ZRH. Acronym Geek. February 14, 2012, 03:49. Available at: http://www.acronymgeek.com/ZRH. Accessed February 14, 2012, 03:49. |