| APA | GYSL. (2012, February 11). In Acronym Geek. Retrieved 21:30, February 11, 2012, from http://www.acronymgeek.com/GYSL |
| MLA | "GYSL." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/GYSL>. |
| MHRA | 'GYSL', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/GYSL> [accessed 11 February 2012] |
| Chicago | "GYSL", http://www.acronymgeek.com/GYSL (accessed February 11, 2012). |
| CBE/CSE | GYSL [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/GYSL. |
| Bluebook | GYSL, http://www.acronymgeek.com/GYSL (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GYSL, http://www.acronymgeek.com/GYSL (optional description here) (as of Feb. 11, 2012, 21:30). |
| AMA | GYSL. Acronym Geek. February 11, 2012, 21:30. Available at: http://www.acronymgeek.com/GYSL. Accessed February 11, 2012, 21:30. |