| APA | DIFF. (2012, February 10). In Acronym Geek. Retrieved 18:16, February 10, 2012, from http://www.acronymgeek.com/DIFF |
| MLA | "DIFF." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/DIFF>. |
| MHRA | 'DIFF', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/DIFF> [accessed 10 February 2012] |
| Chicago | "DIFF", http://www.acronymgeek.com/DIFF (accessed February 10, 2012). |
| CBE/CSE | DIFF [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/DIFF. |
| Bluebook | DIFF, http://www.acronymgeek.com/DIFF (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DIFF, http://www.acronymgeek.com/DIFF (optional description here) (as of Feb. 10, 2012, 18:16). |
| AMA | DIFF. Acronym Geek. February 10, 2012, 18:16. Available at: http://www.acronymgeek.com/DIFF. Accessed February 10, 2012, 18:16. |