| APA | EHY. (2012, February 11). In Acronym Geek. Retrieved 22:29, February 11, 2012, from http://www.acronymgeek.com/EHY |
| MLA | "EHY." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/EHY>. |
| MHRA | 'EHY', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/EHY> [accessed 11 February 2012] |
| Chicago | "EHY", http://www.acronymgeek.com/EHY (accessed February 11, 2012). |
| CBE/CSE | EHY [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/EHY. |
| Bluebook | EHY, http://www.acronymgeek.com/EHY (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHY, http://www.acronymgeek.com/EHY (optional description here) (as of Feb. 11, 2012, 22:29). |
| AMA | EHY. Acronym Geek. February 11, 2012, 22:29. Available at: http://www.acronymgeek.com/EHY. Accessed February 11, 2012, 22:29. |