| APA | ELS. (2012, February 14). In Acronym Geek. Retrieved 20:40, February 14, 2012, from http://www.acronymgeek.com/ELS |
| MLA | "ELS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ELS>. |
| MHRA | 'ELS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ELS> [accessed 14 February 2012] |
| Chicago | "ELS", http://www.acronymgeek.com/ELS (accessed February 14, 2012). |
| CBE/CSE | ELS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ELS. |
| Bluebook | ELS, http://www.acronymgeek.com/ELS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ELS, http://www.acronymgeek.com/ELS (optional description here) (as of Feb. 14, 2012, 20:40). |
| AMA | ELS. Acronym Geek. February 14, 2012, 20:40. Available at: http://www.acronymgeek.com/ELS. Accessed February 14, 2012, 20:40. |