| APA | PDEH. (2012, February 16). In Acronym Geek. Retrieved 02:10, February 16, 2012, from http://www.acronymgeek.com/PDEH |
| MLA | "PDEH." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PDEH>. |
| MHRA | 'PDEH', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PDEH> [accessed 16 February 2012] |
| Chicago | "PDEH", http://www.acronymgeek.com/PDEH (accessed February 16, 2012). |
| CBE/CSE | PDEH [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PDEH. |
| Bluebook | PDEH, http://www.acronymgeek.com/PDEH (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PDEH, http://www.acronymgeek.com/PDEH (optional description here) (as of Feb. 16, 2012, 02:10). |
| AMA | PDEH. Acronym Geek. February 16, 2012, 02:10. Available at: http://www.acronymgeek.com/PDEH. Accessed February 16, 2012, 02:10. |