| APA | OSL. (2012, February 14). In Acronym Geek. Retrieved 09:49, February 14, 2012, from http://www.acronymgeek.com/OSL |
| MLA | "OSL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OSL>. |
| MHRA | 'OSL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OSL> [accessed 14 February 2012] |
| Chicago | "OSL", http://www.acronymgeek.com/OSL (accessed February 14, 2012). |
| CBE/CSE | OSL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OSL. |
| Bluebook | OSL, http://www.acronymgeek.com/OSL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSL, http://www.acronymgeek.com/OSL (optional description here) (as of Feb. 14, 2012, 09:49). |
| AMA | OSL. Acronym Geek. February 14, 2012, 09:49. Available at: http://www.acronymgeek.com/OSL. Accessed February 14, 2012, 09:49. |