| APA | PDEK. (2012, February 15). In Acronym Geek. Retrieved 13:10, February 15, 2012, from http://www.acronymgeek.com/PDEK |
| MLA | "PDEK." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PDEK>. |
| MHRA | 'PDEK', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PDEK> [accessed 15 February 2012] |
| Chicago | "PDEK", http://www.acronymgeek.com/PDEK (accessed February 15, 2012). |
| CBE/CSE | PDEK [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PDEK. |
| Bluebook | PDEK, http://www.acronymgeek.com/PDEK (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PDEK, http://www.acronymgeek.com/PDEK (optional description here) (as of Feb. 15, 2012, 13:10). |
| AMA | PDEK. Acronym Geek. February 15, 2012, 13:10. Available at: http://www.acronymgeek.com/PDEK. Accessed February 15, 2012, 13:10. |