| APA | IISY. (2012, February 15). In Acronym Geek. Retrieved 22:56, February 15, 2012, from http://www.acronymgeek.com/IISY |
| MLA | "IISY." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/IISY>. |
| MHRA | 'IISY', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/IISY> [accessed 15 February 2012] |
| Chicago | "IISY", http://www.acronymgeek.com/IISY (accessed February 15, 2012). |
| CBE/CSE | IISY [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/IISY. |
| Bluebook | IISY, http://www.acronymgeek.com/IISY (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IISY, http://www.acronymgeek.com/IISY (optional description here) (as of Feb. 15, 2012, 22:56). |
| AMA | IISY. Acronym Geek. February 15, 2012, 22:56. Available at: http://www.acronymgeek.com/IISY. Accessed February 15, 2012, 22:56. |