| Style | Reference Text |
|---|
| APA | OPX. (2012, May 27). In All Acronyms. Retrieved 03:00, May 27, 2012, from http://www.all-acronyms.com/OPX |
| MLA | "OPX." All Acronyms. 27 May 2012, 03:00. All Acronyms. 27 May 2012 <http://www.all-acronyms.com/OPX>. |
| MHRA | 'OPX', All Acronyms, 27 May 2012, 03:00, <http://www.all-acronyms.com/OPX> [accessed 27 May 2012] |
| Chicago | "OPX," http://www.all-acronyms.com/OPX (accessed May 27, 2012). |
| CBE/CSE | OPX [Internet]. All Acronyms; 2012 May 27, 03:00 [cited 2012 May 27]. Available from: http://www.all-acronyms.com/OPX. |
| Bluebook | OPX, http://www.all-acronyms.com/OPX (last visited May 27, 2012). |
| Bluebook: Harvard JOLT | See All Acronyms, OPX, http://www.all-acronyms.com/OPX (optional description here) (as of May. 27, 2012, 03:00). |
| AMA | OPX. All Acronyms. May 27, 2012, 03:00. Available at: http://www.all-acronyms.com/OPX. Accessed May 27, 2012. |
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