| APA | LEF. (2012, February 14). In Acronym Geek. Retrieved 04:03, February 14, 2012, from http://www.acronymgeek.com/LEF |
| MLA | "LEF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/LEF>. |
| MHRA | 'LEF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/LEF> [accessed 14 February 2012] |
| Chicago | "LEF", http://www.acronymgeek.com/LEF (accessed February 14, 2012). |
| CBE/CSE | LEF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/LEF. |
| Bluebook | LEF, http://www.acronymgeek.com/LEF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LEF, http://www.acronymgeek.com/LEF (optional description here) (as of Feb. 14, 2012, 04:03). |
| AMA | LEF. Acronym Geek. February 14, 2012, 04:03. Available at: http://www.acronymgeek.com/LEF. Accessed February 14, 2012, 04:03. |