| Style | Reference Text |
|---|
| APA | DAY-OPU. (2009, November 22). In All Acronyms. Retrieved 12:47, November 22, 2009, from http://www.all-acronyms.com/DAY-OPU |
| MLA | "DAY-OPU." All Acronyms. 22 Nov 2009, 12:47. All Acronyms. 22 Nov 2009 <http://www.all-acronyms.com/DAY-OPU>. |
| MHRA | 'DAY-OPU', All Acronyms, 22 November 2009, 12:47, <http://www.all-acronyms.com/DAY-OPU> [accessed 22 November 2009] |
| Chicago | "DAY-OPU," http://www.all-acronyms.com/DAY-OPU (accessed November 22, 2009). |
| CBE/CSE | DAY-OPU [Internet]. All Acronyms; 2009 Nov 22, 12:47 [cited 2009 Nov 22]. Available from: http://www.all-acronyms.com/DAY-OPU. |
| Bluebook | DAY-OPU, http://www.all-acronyms.com/DAY-OPU (last visited November 22, 2009). |
| Bluebook: Harvard JOLT | See All Acronyms, DAY-OPU, http://www.all-acronyms.com/DAY-OPU (optional description here) (as of Nov. 22, 2009, 12:47). |
| AMA | DAY-OPU. All Acronyms. November 22, 2009, 12:47. Available at: http://www.all-acronyms.com/DAY-OPU. Accessed November 22, 2009. |