| APA | EFHN. (2012, February 15). In Acronym Geek. Retrieved 12:11, February 15, 2012, from http://www.acronymgeek.com/EFHN |
| MLA | "EFHN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/EFHN>. |
| MHRA | 'EFHN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/EFHN> [accessed 15 February 2012] |
| Chicago | "EFHN", http://www.acronymgeek.com/EFHN (accessed February 15, 2012). |
| CBE/CSE | EFHN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/EFHN. |
| Bluebook | EFHN, http://www.acronymgeek.com/EFHN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EFHN, http://www.acronymgeek.com/EFHN (optional description here) (as of Feb. 15, 2012, 12:11). |
| AMA | EFHN. Acronym Geek. February 15, 2012, 12:11. Available at: http://www.acronymgeek.com/EFHN. Accessed February 15, 2012, 12:11. |