| APA | WSIO. (2012, February 15). In Acronym Geek. Retrieved 06:02, February 15, 2012, from http://www.acronymgeek.com/WSIO |
| MLA | "WSIO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/WSIO>. |
| MHRA | 'WSIO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/WSIO> [accessed 15 February 2012] |
| Chicago | "WSIO", http://www.acronymgeek.com/WSIO (accessed February 15, 2012). |
| CBE/CSE | WSIO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/WSIO. |
| Bluebook | WSIO, http://www.acronymgeek.com/WSIO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, WSIO, http://www.acronymgeek.com/WSIO (optional description here) (as of Feb. 15, 2012, 06:02). |
| AMA | WSIO. Acronym Geek. February 15, 2012, 06:02. Available at: http://www.acronymgeek.com/WSIO. Accessed February 15, 2012, 06:02. |