| APA | FDDU. (2012, February 17). In Acronym Geek. Retrieved 01:07, February 17, 2012, from http://www.acronymgeek.com/FDDU |
| MLA | "FDDU." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/FDDU>. |
| MHRA | 'FDDU', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/FDDU> [accessed 17 February 2012] |
| Chicago | "FDDU", http://www.acronymgeek.com/FDDU (accessed February 17, 2012). |
| CBE/CSE | FDDU [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/FDDU. |
| Bluebook | FDDU, http://www.acronymgeek.com/FDDU (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FDDU, http://www.acronymgeek.com/FDDU (optional description here) (as of Feb. 17, 2012, 01:07). |
| AMA | FDDU. Acronym Geek. February 17, 2012, 01:07. Available at: http://www.acronymgeek.com/FDDU. Accessed February 17, 2012, 01:07. |