| APA | DPYO. (2012, February 11). In Acronym Geek. Retrieved 06:54, February 11, 2012, from http://www.acronymgeek.com/DPYO |
| MLA | "DPYO." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/DPYO>. |
| MHRA | 'DPYO', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/DPYO> [accessed 11 February 2012] |
| Chicago | "DPYO", http://www.acronymgeek.com/DPYO (accessed February 11, 2012). |
| CBE/CSE | DPYO [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/DPYO. |
| Bluebook | DPYO, http://www.acronymgeek.com/DPYO (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DPYO, http://www.acronymgeek.com/DPYO (optional description here) (as of Feb. 11, 2012, 06:54). |
| AMA | DPYO. Acronym Geek. February 11, 2012, 06:54. Available at: http://www.acronymgeek.com/DPYO. Accessed February 11, 2012, 06:54. |