| APA | IST. (2012, February 13). In Acronym Geek. Retrieved 20:54, February 13, 2012, from http://www.acronymgeek.com/IST |
| MLA | "IST." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/IST>. |
| MHRA | 'IST', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/IST> [accessed 13 February 2012] |
| Chicago | "IST", http://www.acronymgeek.com/IST (accessed February 13, 2012). |
| CBE/CSE | IST [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/IST. |
| Bluebook | IST, http://www.acronymgeek.com/IST (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IST, http://www.acronymgeek.com/IST (optional description here) (as of Feb. 13, 2012, 20:54). |
| AMA | IST. Acronym Geek. February 13, 2012, 20:54. Available at: http://www.acronymgeek.com/IST. Accessed February 13, 2012, 20:54. |