| APA | PDUS. (2012, February 17). In Acronym Geek. Retrieved 06:41, February 17, 2012, from http://www.acronymgeek.com/PDUS |
| MLA | "PDUS." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PDUS>. |
| MHRA | 'PDUS', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PDUS> [accessed 17 February 2012] |
| Chicago | "PDUS", http://www.acronymgeek.com/PDUS (accessed February 17, 2012). |
| CBE/CSE | PDUS [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PDUS. |
| Bluebook | PDUS, http://www.acronymgeek.com/PDUS (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PDUS, http://www.acronymgeek.com/PDUS (optional description here) (as of Feb. 17, 2012, 06:41). |
| AMA | PDUS. Acronym Geek. February 17, 2012, 06:41. Available at: http://www.acronymgeek.com/PDUS. Accessed February 17, 2012, 06:41. |