| APA | W.S.. (2012, February 17). In Acronym Geek. Retrieved 05:54, February 17, 2012, from http://www.acronymgeek.com/W.S. |
| MLA | "W.S.." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/W.S.>. |
| MHRA | 'W.S.', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/W.S.> [accessed 17 February 2012] |
| Chicago | "W.S.", http://www.acronymgeek.com/W.S. (accessed February 17, 2012). |
| CBE/CSE | W.S. [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/W.S.. |
| Bluebook | W.S., http://www.acronymgeek.com/W.S. (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, W.S., http://www.acronymgeek.com/W.S. (optional description here) (as of Feb. 17, 2012, 05:54). |
| AMA | W.S.. Acronym Geek. February 17, 2012, 05:54. Available at: http://www.acronymgeek.com/W.S.. Accessed February 17, 2012, 05:54. |