| APA | DUCE. (2012, February 12). In Acronym Geek. Retrieved 01:25, February 12, 2012, from http://www.acronymgeek.com/DUCE |
| MLA | "DUCE." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/DUCE>. |
| MHRA | 'DUCE', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/DUCE> [accessed 12 February 2012] |
| Chicago | "DUCE", http://www.acronymgeek.com/DUCE (accessed February 12, 2012). |
| CBE/CSE | DUCE [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/DUCE. |
| Bluebook | DUCE, http://www.acronymgeek.com/DUCE (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DUCE, http://www.acronymgeek.com/DUCE (optional description here) (as of Feb. 12, 2012, 01:25). |
| AMA | DUCE. Acronym Geek. February 12, 2012, 01:25. Available at: http://www.acronymgeek.com/DUCE. Accessed February 12, 2012, 01:25. |