| APA | WTOS. (2012, February 15). In Acronym Geek. Retrieved 22:34, February 15, 2012, from http://www.acronymgeek.com/WTOS |
| MLA | "WTOS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/WTOS>. |
| MHRA | 'WTOS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/WTOS> [accessed 15 February 2012] |
| Chicago | "WTOS", http://www.acronymgeek.com/WTOS (accessed February 15, 2012). |
| CBE/CSE | WTOS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/WTOS. |
| Bluebook | WTOS, http://www.acronymgeek.com/WTOS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, WTOS, http://www.acronymgeek.com/WTOS (optional description here) (as of Feb. 15, 2012, 22:34). |
| AMA | WTOS. Acronym Geek. February 15, 2012, 22:34. Available at: http://www.acronymgeek.com/WTOS. Accessed February 15, 2012, 22:34. |