| APA | DUPL. (2012, February 17). In Acronym Geek. Retrieved 06:56, February 17, 2012, from http://www.acronymgeek.com/DUPL |
| MLA | "DUPL." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/DUPL>. |
| MHRA | 'DUPL', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/DUPL> [accessed 17 February 2012] |
| Chicago | "DUPL", http://www.acronymgeek.com/DUPL (accessed February 17, 2012). |
| CBE/CSE | DUPL [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/DUPL. |
| Bluebook | DUPL, http://www.acronymgeek.com/DUPL (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DUPL, http://www.acronymgeek.com/DUPL (optional description here) (as of Feb. 17, 2012, 06:56). |
| AMA | DUPL. Acronym Geek. February 17, 2012, 06:56. Available at: http://www.acronymgeek.com/DUPL. Accessed February 17, 2012, 06:56. |