| APA | PIDD. (2012, February 16). In Acronym Geek. Retrieved 17:48, February 16, 2012, from http://www.acronymgeek.com/PIDD |
| MLA | "PIDD." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PIDD>. |
| MHRA | 'PIDD', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PIDD> [accessed 16 February 2012] |
| Chicago | "PIDD", http://www.acronymgeek.com/PIDD (accessed February 16, 2012). |
| CBE/CSE | PIDD [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PIDD. |
| Bluebook | PIDD, http://www.acronymgeek.com/PIDD (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PIDD, http://www.acronymgeek.com/PIDD (optional description here) (as of Feb. 16, 2012, 17:48). |
| AMA | PIDD. Acronym Geek. February 16, 2012, 17:48. Available at: http://www.acronymgeek.com/PIDD. Accessed February 16, 2012, 17:48. |