| APA | PUK. (2012, February 14). In Acronym Geek. Retrieved 04:34, February 14, 2012, from http://www.acronymgeek.com/PUK |
| MLA | "PUK." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PUK>. |
| MHRA | 'PUK', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PUK> [accessed 14 February 2012] |
| Chicago | "PUK", http://www.acronymgeek.com/PUK (accessed February 14, 2012). |
| CBE/CSE | PUK [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PUK. |
| Bluebook | PUK, http://www.acronymgeek.com/PUK (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PUK, http://www.acronymgeek.com/PUK (optional description here) (as of Feb. 14, 2012, 04:34). |
| AMA | PUK. Acronym Geek. February 14, 2012, 04:34. Available at: http://www.acronymgeek.com/PUK. Accessed February 14, 2012, 04:34. |