| APA | PDDS. (2012, February 15). In Acronym Geek. Retrieved 06:40, February 15, 2012, from http://www.acronymgeek.com/PDDS |
| MLA | "PDDS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PDDS>. |
| MHRA | 'PDDS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PDDS> [accessed 15 February 2012] |
| Chicago | "PDDS", http://www.acronymgeek.com/PDDS (accessed February 15, 2012). |
| CBE/CSE | PDDS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PDDS. |
| Bluebook | PDDS, http://www.acronymgeek.com/PDDS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PDDS, http://www.acronymgeek.com/PDDS (optional description here) (as of Feb. 15, 2012, 06:40). |
| AMA | PDDS. Acronym Geek. February 15, 2012, 06:40. Available at: http://www.acronymgeek.com/PDDS. Accessed February 15, 2012, 06:40. |