| Style | Reference Text |
|---|
| APA | Open System. (2013, May 24). In All Acronyms. Retrieved 05:47, May 24, 2013, from http://www.all-acronyms.com/OS/Open_System/161481 |
| MLA | "Open System." All Acronyms. 24 May 2013, 05:47. All Acronyms. 24 May 2013 <http://www.all-acronyms.com/OS/Open_System/161481>. |
| MHRA | 'Open System', All Acronyms, 24 May 2013, 05:47, <http://www.all-acronyms.com/OS/Open_System/161481> [accessed 24 May 2013] |
| Chicago | "Open System," http://www.all-acronyms.com/OS/Open_System/161481 (accessed May 24, 2013). |
| CBE/CSE | Open System [Internet]. All Acronyms; 2013 May 24, 05:47 [cited 2013 May 24]. Available from: http://www.all-acronyms.com/OS/Open_System/161481. |
| Bluebook | Open System, http://www.all-acronyms.com/OS/Open_System/161481 (last visited May 24, 2013). |
| Bluebook: Harvard JOLT | See All Acronyms, Open System, http://www.all-acronyms.com/OS/Open_System/161481 (optional description here) (as of May. 24, 2013, 05:47). |
| AMA | Open System. All Acronyms. May 24, 2013, 05:47. Available at: http://www.all-acronyms.com/OS/Open_System/161481. Accessed May 24, 2013. |