| APA | PNDK. (2012, February 15). In Acronym Geek. Retrieved 21:19, February 15, 2012, from http://www.acronymgeek.com/PNDK |
| MLA | "PNDK." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PNDK>. |
| MHRA | 'PNDK', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PNDK> [accessed 15 February 2012] |
| Chicago | "PNDK", http://www.acronymgeek.com/PNDK (accessed February 15, 2012). |
| CBE/CSE | PNDK [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PNDK. |
| Bluebook | PNDK, http://www.acronymgeek.com/PNDK (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PNDK, http://www.acronymgeek.com/PNDK (optional description here) (as of Feb. 15, 2012, 21:19). |
| AMA | PNDK. Acronym Geek. February 15, 2012, 21:19. Available at: http://www.acronymgeek.com/PNDK. Accessed February 15, 2012, 21:19. |