| APA | DIFG. (2012, February 15). In Acronym Geek. Retrieved 13:04, February 15, 2012, from http://www.acronymgeek.com/DIFG |
| MLA | "DIFG." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/DIFG>. |
| MHRA | 'DIFG', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/DIFG> [accessed 15 February 2012] |
| Chicago | "DIFG", http://www.acronymgeek.com/DIFG (accessed February 15, 2012). |
| CBE/CSE | DIFG [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/DIFG. |
| Bluebook | DIFG, http://www.acronymgeek.com/DIFG (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DIFG, http://www.acronymgeek.com/DIFG (optional description here) (as of Feb. 15, 2012, 13:04). |
| AMA | DIFG. Acronym Geek. February 15, 2012, 13:04. Available at: http://www.acronymgeek.com/DIFG. Accessed February 15, 2012, 13:04. |