| APA | QESL. (2012, February 15). In Acronym Geek. Retrieved 04:58, February 15, 2012, from http://www.acronymgeek.com/QESL |
| MLA | "QESL." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/QESL>. |
| MHRA | 'QESL', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/QESL> [accessed 15 February 2012] |
| Chicago | "QESL", http://www.acronymgeek.com/QESL (accessed February 15, 2012). |
| CBE/CSE | QESL [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/QESL. |
| Bluebook | QESL, http://www.acronymgeek.com/QESL (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QESL, http://www.acronymgeek.com/QESL (optional description here) (as of Feb. 15, 2012, 04:58). |
| AMA | QESL. Acronym Geek. February 15, 2012, 04:58. Available at: http://www.acronymgeek.com/QESL. Accessed February 15, 2012, 04:58. |