| APA | IFS. (2012, February 14). In Acronym Geek. Retrieved 09:52, February 14, 2012, from http://www.acronymgeek.com/IFS |
| MLA | "IFS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/IFS>. |
| MHRA | 'IFS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/IFS> [accessed 14 February 2012] |
| Chicago | "IFS", http://www.acronymgeek.com/IFS (accessed February 14, 2012). |
| CBE/CSE | IFS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/IFS. |
| Bluebook | IFS, http://www.acronymgeek.com/IFS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IFS, http://www.acronymgeek.com/IFS (optional description here) (as of Feb. 14, 2012, 09:52). |
| AMA | IFS. Acronym Geek. February 14, 2012, 09:52. Available at: http://www.acronymgeek.com/IFS. Accessed February 14, 2012, 09:52. |