| Style | Reference Text |
|---|
| APA | O. (2013, May 22). In All Acronyms. Retrieved 02:57, May 22, 2013, from http://www.all-acronyms.com/O |
| MLA | "O." All Acronyms. 22 May 2013, 02:57. All Acronyms. 22 May 2013 <http://www.all-acronyms.com/O>. |
| MHRA | 'O', All Acronyms, 22 May 2013, 02:57, <http://www.all-acronyms.com/O> [accessed 22 May 2013] |
| Chicago | "O," http://www.all-acronyms.com/O (accessed May 22, 2013). |
| CBE/CSE | O [Internet]. All Acronyms; 2013 May 22, 02:57 [cited 2013 May 22]. Available from: http://www.all-acronyms.com/O. |
| Bluebook | O, http://www.all-acronyms.com/O (last visited May 22, 2013). |
| Bluebook: Harvard JOLT | See All Acronyms, O, http://www.all-acronyms.com/O (optional description here) (as of May. 22, 2013, 02:57). |
| AMA | O. All Acronyms. May 22, 2013, 02:57. Available at: http://www.all-acronyms.com/O. Accessed May 22, 2013. |
Oxygen