| APA | DUCU. (2012, February 16). In Acronym Geek. Retrieved 12:26, February 16, 2012, from http://www.acronymgeek.com/DUCU |
| MLA | "DUCU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/DUCU>. |
| MHRA | 'DUCU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/DUCU> [accessed 16 February 2012] |
| Chicago | "DUCU", http://www.acronymgeek.com/DUCU (accessed February 16, 2012). |
| CBE/CSE | DUCU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/DUCU. |
| Bluebook | DUCU, http://www.acronymgeek.com/DUCU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DUCU, http://www.acronymgeek.com/DUCU (optional description here) (as of Feb. 16, 2012, 12:26). |
| AMA | DUCU. Acronym Geek. February 16, 2012, 12:26. Available at: http://www.acronymgeek.com/DUCU. Accessed February 16, 2012, 12:26. |