| APA | OSTS. (2012, February 15). In Acronym Geek. Retrieved 00:10, February 15, 2012, from http://www.acronymgeek.com/OSTS |
| MLA | "OSTS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OSTS>. |
| MHRA | 'OSTS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OSTS> [accessed 15 February 2012] |
| Chicago | "OSTS", http://www.acronymgeek.com/OSTS (accessed February 15, 2012). |
| CBE/CSE | OSTS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OSTS. |
| Bluebook | OSTS, http://www.acronymgeek.com/OSTS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSTS, http://www.acronymgeek.com/OSTS (optional description here) (as of Feb. 15, 2012, 00:10). |
| AMA | OSTS. Acronym Geek. February 15, 2012, 00:10. Available at: http://www.acronymgeek.com/OSTS. Accessed February 15, 2012, 00:10. |