| APA | PUDK. (2012, February 15). In Acronym Geek. Retrieved 22:18, February 15, 2012, from http://www.acronymgeek.com/PUDK |
| MLA | "PUDK." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PUDK>. |
| MHRA | 'PUDK', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PUDK> [accessed 15 February 2012] |
| Chicago | "PUDK", http://www.acronymgeek.com/PUDK (accessed February 15, 2012). |
| CBE/CSE | PUDK [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PUDK. |
| Bluebook | PUDK, http://www.acronymgeek.com/PUDK (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PUDK, http://www.acronymgeek.com/PUDK (optional description here) (as of Feb. 15, 2012, 22:18). |
| AMA | PUDK. Acronym Geek. February 15, 2012, 22:18. Available at: http://www.acronymgeek.com/PUDK. Accessed February 15, 2012, 22:18. |