| APA | DPY. (2012, February 11). In Acronym Geek. Retrieved 22:42, February 11, 2012, from http://www.acronymgeek.com/DPY |
| MLA | "DPY." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/DPY>. |
| MHRA | 'DPY', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/DPY> [accessed 11 February 2012] |
| Chicago | "DPY", http://www.acronymgeek.com/DPY (accessed February 11, 2012). |
| CBE/CSE | DPY [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/DPY. |
| Bluebook | DPY, http://www.acronymgeek.com/DPY (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DPY, http://www.acronymgeek.com/DPY (optional description here) (as of Feb. 11, 2012, 22:42). |
| AMA | DPY. Acronym Geek. February 11, 2012, 22:42. Available at: http://www.acronymgeek.com/DPY. Accessed February 11, 2012, 22:42. |