| APA | FDUP. (2012, February 16). In Acronym Geek. Retrieved 01:56, February 16, 2012, from http://www.acronymgeek.com/FDUP |
| MLA | "FDUP." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/FDUP>. |
| MHRA | 'FDUP', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/FDUP> [accessed 16 February 2012] |
| Chicago | "FDUP", http://www.acronymgeek.com/FDUP (accessed February 16, 2012). |
| CBE/CSE | FDUP [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/FDUP. |
| Bluebook | FDUP, http://www.acronymgeek.com/FDUP (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FDUP, http://www.acronymgeek.com/FDUP (optional description here) (as of Feb. 16, 2012, 01:56). |
| AMA | FDUP. Acronym Geek. February 16, 2012, 01:56. Available at: http://www.acronymgeek.com/FDUP. Accessed February 16, 2012, 01:56. |