| APA | EFYH. (2012, February 16). In Acronym Geek. Retrieved 01:58, February 16, 2012, from http://www.acronymgeek.com/EFYH |
| MLA | "EFYH." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/EFYH>. |
| MHRA | 'EFYH', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/EFYH> [accessed 16 February 2012] |
| Chicago | "EFYH", http://www.acronymgeek.com/EFYH (accessed February 16, 2012). |
| CBE/CSE | EFYH [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/EFYH. |
| Bluebook | EFYH, http://www.acronymgeek.com/EFYH (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EFYH, http://www.acronymgeek.com/EFYH (optional description here) (as of Feb. 16, 2012, 01:58). |
| AMA | EFYH. Acronym Geek. February 16, 2012, 01:58. Available at: http://www.acronymgeek.com/EFYH. Accessed February 16, 2012, 01:58. |