| APA | DUCA. (2012, February 11). In Acronym Geek. Retrieved 21:22, February 11, 2012, from http://www.acronymgeek.com/DUCA |
| MLA | "DUCA." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/DUCA>. |
| MHRA | 'DUCA', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/DUCA> [accessed 11 February 2012] |
| Chicago | "DUCA", http://www.acronymgeek.com/DUCA (accessed February 11, 2012). |
| CBE/CSE | DUCA [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/DUCA. |
| Bluebook | DUCA, http://www.acronymgeek.com/DUCA (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DUCA, http://www.acronymgeek.com/DUCA (optional description here) (as of Feb. 11, 2012, 21:22). |
| AMA | DUCA. Acronym Geek. February 11, 2012, 21:22. Available at: http://www.acronymgeek.com/DUCA. Accessed February 11, 2012, 21:22. |