| APA | DIFS. (2012, February 17). In Acronym Geek. Retrieved 00:03, February 17, 2012, from http://www.acronymgeek.com/DIFS |
| MLA | "DIFS." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/DIFS>. |
| MHRA | 'DIFS', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/DIFS> [accessed 17 February 2012] |
| Chicago | "DIFS", http://www.acronymgeek.com/DIFS (accessed February 17, 2012). |
| CBE/CSE | DIFS [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/DIFS. |
| Bluebook | DIFS, http://www.acronymgeek.com/DIFS (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DIFS, http://www.acronymgeek.com/DIFS (optional description here) (as of Feb. 17, 2012, 00:03). |
| AMA | DIFS. Acronym Geek. February 17, 2012, 00:03. Available at: http://www.acronymgeek.com/DIFS. Accessed February 17, 2012, 00:03. |