| APA | ZEHS. (2012, February 15). In Acronym Geek. Retrieved 18:31, February 15, 2012, from http://www.acronymgeek.com/ZEHS |
| MLA | "ZEHS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ZEHS>. |
| MHRA | 'ZEHS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ZEHS> [accessed 15 February 2012] |
| Chicago | "ZEHS", http://www.acronymgeek.com/ZEHS (accessed February 15, 2012). |
| CBE/CSE | ZEHS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ZEHS. |
| Bluebook | ZEHS, http://www.acronymgeek.com/ZEHS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZEHS, http://www.acronymgeek.com/ZEHS (optional description here) (as of Feb. 15, 2012, 18:31). |
| AMA | ZEHS. Acronym Geek. February 15, 2012, 18:31. Available at: http://www.acronymgeek.com/ZEHS. Accessed February 15, 2012, 18:31. |