| APA | DIFI. (2012, February 15). In Acronym Geek. Retrieved 15:46, February 15, 2012, from http://www.acronymgeek.com/DIFI |
| MLA | "DIFI." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/DIFI>. |
| MHRA | 'DIFI', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/DIFI> [accessed 15 February 2012] |
| Chicago | "DIFI", http://www.acronymgeek.com/DIFI (accessed February 15, 2012). |
| CBE/CSE | DIFI [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/DIFI. |
| Bluebook | DIFI, http://www.acronymgeek.com/DIFI (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DIFI, http://www.acronymgeek.com/DIFI (optional description here) (as of Feb. 15, 2012, 15:46). |
| AMA | DIFI. Acronym Geek. February 15, 2012, 15:46. Available at: http://www.acronymgeek.com/DIFI. Accessed February 15, 2012, 15:46. |