| APA | APDE. (2012, February 16). In Acronym Geek. Retrieved 08:33, February 16, 2012, from http://www.acronymgeek.com/APDE |
| MLA | "APDE." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/APDE>. |
| MHRA | 'APDE', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/APDE> [accessed 16 February 2012] |
| Chicago | "APDE", http://www.acronymgeek.com/APDE (accessed February 16, 2012). |
| CBE/CSE | APDE [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/APDE. |
| Bluebook | APDE, http://www.acronymgeek.com/APDE (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, APDE, http://www.acronymgeek.com/APDE (optional description here) (as of Feb. 16, 2012, 08:33). |
| AMA | APDE. Acronym Geek. February 16, 2012, 08:33. Available at: http://www.acronymgeek.com/APDE. Accessed February 16, 2012, 08:33. |