| APA | QSF. (2012, February 14). In Acronym Geek. Retrieved 11:07, February 14, 2012, from http://www.acronymgeek.com/QSF |
| MLA | "QSF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/QSF>. |
| MHRA | 'QSF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/QSF> [accessed 14 February 2012] |
| Chicago | "QSF", http://www.acronymgeek.com/QSF (accessed February 14, 2012). |
| CBE/CSE | QSF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/QSF. |
| Bluebook | QSF, http://www.acronymgeek.com/QSF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QSF, http://www.acronymgeek.com/QSF (optional description here) (as of Feb. 14, 2012, 11:07). |
| AMA | QSF. Acronym Geek. February 14, 2012, 11:07. Available at: http://www.acronymgeek.com/QSF. Accessed February 14, 2012, 11:07. |