| APA | PUDB. (2012, February 14). In Acronym Geek. Retrieved 23:28, February 14, 2012, from http://www.acronymgeek.com/PUDB |
| MLA | "PUDB." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PUDB>. |
| MHRA | 'PUDB', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PUDB> [accessed 14 February 2012] |
| Chicago | "PUDB", http://www.acronymgeek.com/PUDB (accessed February 14, 2012). |
| CBE/CSE | PUDB [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PUDB. |
| Bluebook | PUDB, http://www.acronymgeek.com/PUDB (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PUDB, http://www.acronymgeek.com/PUDB (optional description here) (as of Feb. 14, 2012, 23:28). |
| AMA | PUDB. Acronym Geek. February 14, 2012, 23:28. Available at: http://www.acronymgeek.com/PUDB. Accessed February 14, 2012, 23:28. |