| APA | ONS. (2012, February 8). In Acronym Geek. Retrieved 23:44, February 8, 2012, from http://www.acronymgeek.com/ONS |
| MLA | "ONS." Acronym Geek. (2012). Acronym Geek. 8 Feb 2012 <http://www.acronymgeek.com/ONS>. |
| MHRA | 'ONS', Acronym Geek, 8 February 2012, <http://www.acronymgeek.com/ONS> [accessed 8 February 2012] |
| Chicago | "ONS", http://www.acronymgeek.com/ONS (accessed February 8, 2012). |
| CBE/CSE | ONS [Internet]. Acronym Geek; 2012 Feb 8 [cited 2012 Feb 8]. Available from: http://www.acronymgeek.com/ONS. |
| Bluebook | ONS, http://www.acronymgeek.com/ONS (last visited February 8, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ONS, http://www.acronymgeek.com/ONS (optional description here) (as of Feb. 8, 2012, 23:44). |
| AMA | ONS. Acronym Geek. February 8, 2012, 23:44. Available at: http://www.acronymgeek.com/ONS. Accessed February 8, 2012, 23:44. |