| APA | DFHY. (2012, February 15). In Acronym Geek. Retrieved 06:27, February 15, 2012, from http://www.acronymgeek.com/DFHY |
| MLA | "DFHY." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/DFHY>. |
| MHRA | 'DFHY', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/DFHY> [accessed 15 February 2012] |
| Chicago | "DFHY", http://www.acronymgeek.com/DFHY (accessed February 15, 2012). |
| CBE/CSE | DFHY [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/DFHY. |
| Bluebook | DFHY, http://www.acronymgeek.com/DFHY (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DFHY, http://www.acronymgeek.com/DFHY (optional description here) (as of Feb. 15, 2012, 06:27). |
| AMA | DFHY. Acronym Geek. February 15, 2012, 06:27. Available at: http://www.acronymgeek.com/DFHY. Accessed February 15, 2012, 06:27. |