| APA | QLS. (2012, February 10). In Acronym Geek. Retrieved 11:14, February 10, 2012, from http://www.acronymgeek.com/QLS |
| MLA | "QLS." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/QLS>. |
| MHRA | 'QLS', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/QLS> [accessed 10 February 2012] |
| Chicago | "QLS", http://www.acronymgeek.com/QLS (accessed February 10, 2012). |
| CBE/CSE | QLS [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/QLS. |
| Bluebook | QLS, http://www.acronymgeek.com/QLS (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QLS, http://www.acronymgeek.com/QLS (optional description here) (as of Feb. 10, 2012, 11:14). |
| AMA | QLS. Acronym Geek. February 10, 2012, 11:14. Available at: http://www.acronymgeek.com/QLS. Accessed February 10, 2012, 11:14. |