| APA | QSEI. (2012, February 17). In Acronym Geek. Retrieved 02:30, February 17, 2012, from http://www.acronymgeek.com/QSEI |
| MLA | "QSEI." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/QSEI>. |
| MHRA | 'QSEI', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/QSEI> [accessed 17 February 2012] |
| Chicago | "QSEI", http://www.acronymgeek.com/QSEI (accessed February 17, 2012). |
| CBE/CSE | QSEI [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/QSEI. |
| Bluebook | QSEI, http://www.acronymgeek.com/QSEI (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QSEI, http://www.acronymgeek.com/QSEI (optional description here) (as of Feb. 17, 2012, 02:30). |
| AMA | QSEI. Acronym Geek. February 17, 2012, 02:30. Available at: http://www.acronymgeek.com/QSEI. Accessed February 17, 2012, 02:30. |