| APA | QFS. (2012, February 14). In Acronym Geek. Retrieved 07:13, February 14, 2012, from http://www.acronymgeek.com/QFS |
| MLA | "QFS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/QFS>. |
| MHRA | 'QFS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/QFS> [accessed 14 February 2012] |
| Chicago | "QFS", http://www.acronymgeek.com/QFS (accessed February 14, 2012). |
| CBE/CSE | QFS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/QFS. |
| Bluebook | QFS, http://www.acronymgeek.com/QFS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QFS, http://www.acronymgeek.com/QFS (optional description here) (as of Feb. 14, 2012, 07:13). |
| AMA | QFS. Acronym Geek. February 14, 2012, 07:13. Available at: http://www.acronymgeek.com/QFS. Accessed February 14, 2012, 07:13. |