| APA | SILL. (2012, February 16). In Acronym Geek. Retrieved 23:39, February 16, 2012, from http://www.acronymgeek.com/SILL |
| MLA | "SILL." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SILL>. |
| MHRA | 'SILL', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SILL> [accessed 16 February 2012] |
| Chicago | "SILL", http://www.acronymgeek.com/SILL (accessed February 16, 2012). |
| CBE/CSE | SILL [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SILL. |
| Bluebook | SILL, http://www.acronymgeek.com/SILL (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SILL, http://www.acronymgeek.com/SILL (optional description here) (as of Feb. 16, 2012, 23:39). |
| AMA | SILL. Acronym Geek. February 16, 2012, 23:39. Available at: http://www.acronymgeek.com/SILL. Accessed February 16, 2012, 23:39. |