| APA | PLDD. (2012, February 16). In Acronym Geek. Retrieved 08:37, February 16, 2012, from http://www.acronymgeek.com/PLDD |
| MLA | "PLDD." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PLDD>. |
| MHRA | 'PLDD', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PLDD> [accessed 16 February 2012] |
| Chicago | "PLDD", http://www.acronymgeek.com/PLDD (accessed February 16, 2012). |
| CBE/CSE | PLDD [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PLDD. |
| Bluebook | PLDD, http://www.acronymgeek.com/PLDD (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PLDD, http://www.acronymgeek.com/PLDD (optional description here) (as of Feb. 16, 2012, 08:37). |
| AMA | PLDD. Acronym Geek. February 16, 2012, 08:37. Available at: http://www.acronymgeek.com/PLDD. Accessed February 16, 2012, 08:37. |