| APA | DIFB. (2012, February 16). In Acronym Geek. Retrieved 23:38, February 16, 2012, from http://www.acronymgeek.com/DIFB |
| MLA | "DIFB." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/DIFB>. |
| MHRA | 'DIFB', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/DIFB> [accessed 16 February 2012] |
| Chicago | "DIFB", http://www.acronymgeek.com/DIFB (accessed February 16, 2012). |
| CBE/CSE | DIFB [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/DIFB. |
| Bluebook | DIFB, http://www.acronymgeek.com/DIFB (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DIFB, http://www.acronymgeek.com/DIFB (optional description here) (as of Feb. 16, 2012, 23:38). |
| AMA | DIFB. Acronym Geek. February 16, 2012, 23:38. Available at: http://www.acronymgeek.com/DIFB. Accessed February 16, 2012, 23:38. |