| Style | Reference Text |
|---|
| APA | PO. (2009, November 28). In All Acronyms. Retrieved 12:31, November 28, 2009, from http://www.all-acronyms.com/cat/4/PO |
| MLA | "PO." All Acronyms. 28 Nov 2009, 12:31. All Acronyms. 28 Nov 2009 <http://www.all-acronyms.com/cat/4/PO>. |
| MHRA | 'PO', All Acronyms, 28 November 2009, 12:31, <http://www.all-acronyms.com/cat/4/PO> [accessed 28 November 2009] |
| Chicago | "PO," http://www.all-acronyms.com/cat/4/PO (accessed November 28, 2009). |
| CBE/CSE | PO [Internet]. All Acronyms; 2009 Nov 28, 12:31 [cited 2009 Nov 28]. Available from: http://www.all-acronyms.com/cat/4/PO. |
| Bluebook | PO, http://www.all-acronyms.com/cat/4/PO (last visited November 28, 2009). |
| Bluebook: Harvard JOLT | See All Acronyms, PO, http://www.all-acronyms.com/cat/4/PO (optional description here) (as of Nov. 28, 2009, 12:31). |
| AMA | PO. All Acronyms. November 28, 2009, 12:31. Available at: http://www.all-acronyms.com/cat/4/PO. Accessed November 28, 2009. |
principal only