| APA | PDDZ. (2012, February 16). In Acronym Geek. Retrieved 04:09, February 16, 2012, from http://www.acronymgeek.com/PDDZ |
| MLA | "PDDZ." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PDDZ>. |
| MHRA | 'PDDZ', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PDDZ> [accessed 16 February 2012] |
| Chicago | "PDDZ", http://www.acronymgeek.com/PDDZ (accessed February 16, 2012). |
| CBE/CSE | PDDZ [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PDDZ. |
| Bluebook | PDDZ, http://www.acronymgeek.com/PDDZ (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PDDZ, http://www.acronymgeek.com/PDDZ (optional description here) (as of Feb. 16, 2012, 04:09). |
| AMA | PDDZ. Acronym Geek. February 16, 2012, 04:09. Available at: http://www.acronymgeek.com/PDDZ. Accessed February 16, 2012, 04:09. |