| APA | DERF. (2012, February 16). In Acronym Geek. Retrieved 11:07, February 16, 2012, from http://www.acronymgeek.com/DERF |
| MLA | "DERF." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/DERF>. |
| MHRA | 'DERF', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/DERF> [accessed 16 February 2012] |
| Chicago | "DERF", http://www.acronymgeek.com/DERF (accessed February 16, 2012). |
| CBE/CSE | DERF [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/DERF. |
| Bluebook | DERF, http://www.acronymgeek.com/DERF (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DERF, http://www.acronymgeek.com/DERF (optional description here) (as of Feb. 16, 2012, 11:07). |
| AMA | DERF. Acronym Geek. February 16, 2012, 11:07. Available at: http://www.acronymgeek.com/DERF. Accessed February 16, 2012, 11:07. |