| APA | DDPU. (2012, February 16). In Acronym Geek. Retrieved 09:38, February 16, 2012, from http://www.acronymgeek.com/DDPU |
| MLA | "DDPU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/DDPU>. |
| MHRA | 'DDPU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/DDPU> [accessed 16 February 2012] |
| Chicago | "DDPU", http://www.acronymgeek.com/DDPU (accessed February 16, 2012). |
| CBE/CSE | DDPU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/DDPU. |
| Bluebook | DDPU, http://www.acronymgeek.com/DDPU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DDPU, http://www.acronymgeek.com/DDPU (optional description here) (as of Feb. 16, 2012, 09:38). |
| AMA | DDPU. Acronym Geek. February 16, 2012, 09:38. Available at: http://www.acronymgeek.com/DDPU. Accessed February 16, 2012, 09:38. |