| APA | QTL. (2012, February 14). In Acronym Geek. Retrieved 02:33, February 14, 2012, from http://www.acronymgeek.com/QTL |
| MLA | "QTL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/QTL>. |
| MHRA | 'QTL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/QTL> [accessed 14 February 2012] |
| Chicago | "QTL", http://www.acronymgeek.com/QTL (accessed February 14, 2012). |
| CBE/CSE | QTL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/QTL. |
| Bluebook | QTL, http://www.acronymgeek.com/QTL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QTL, http://www.acronymgeek.com/QTL (optional description here) (as of Feb. 14, 2012, 02:33). |
| AMA | QTL. Acronym Geek. February 14, 2012, 02:33. Available at: http://www.acronymgeek.com/QTL. Accessed February 14, 2012, 02:33. |