| APA | EHDF. (2012, February 15). In Acronym Geek. Retrieved 20:08, February 15, 2012, from http://www.acronymgeek.com/EHDF |
| MLA | "EHDF." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/EHDF>. |
| MHRA | 'EHDF', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/EHDF> [accessed 15 February 2012] |
| Chicago | "EHDF", http://www.acronymgeek.com/EHDF (accessed February 15, 2012). |
| CBE/CSE | EHDF [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/EHDF. |
| Bluebook | EHDF, http://www.acronymgeek.com/EHDF (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHDF, http://www.acronymgeek.com/EHDF (optional description here) (as of Feb. 15, 2012, 20:08). |
| AMA | EHDF. Acronym Geek. February 15, 2012, 20:08. Available at: http://www.acronymgeek.com/EHDF. Accessed February 15, 2012, 20:08. |