| APA | DEFH. (2012, February 15). In Acronym Geek. Retrieved 10:58, February 15, 2012, from http://www.acronymgeek.com/DEFH |
| MLA | "DEFH." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/DEFH>. |
| MHRA | 'DEFH', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/DEFH> [accessed 15 February 2012] |
| Chicago | "DEFH", http://www.acronymgeek.com/DEFH (accessed February 15, 2012). |
| CBE/CSE | DEFH [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/DEFH. |
| Bluebook | DEFH, http://www.acronymgeek.com/DEFH (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DEFH, http://www.acronymgeek.com/DEFH (optional description here) (as of Feb. 15, 2012, 10:58). |
| AMA | DEFH. Acronym Geek. February 15, 2012, 10:58. Available at: http://www.acronymgeek.com/DEFH. Accessed February 15, 2012, 10:58. |