| APA | P&D. (2012, February 9). In Acronym Geek. Retrieved 13:38, February 9, 2012, from http://www.acronymgeek.com/P&D |
| MLA | "P&D." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/P&D>. |
| MHRA | 'P&D', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/P&D> [accessed 9 February 2012] |
| Chicago | "P&D", http://www.acronymgeek.com/P&D (accessed February 9, 2012). |
| CBE/CSE | P&D [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/P&D. |
| Bluebook | P&D, http://www.acronymgeek.com/P&D (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, P&D, http://www.acronymgeek.com/P&D (optional description here) (as of Feb. 9, 2012, 13:38). |
| AMA | P&D. Acronym Geek. February 9, 2012, 13:38. Available at: http://www.acronymgeek.com/P&D. Accessed February 9, 2012, 13:38. |