| APA | 1GL. (2012, February 11). In Acronym Geek. Retrieved 17:25, February 11, 2012, from http://www.acronymgeek.com/1GL |
| MLA | "1GL." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/1GL>. |
| MHRA | '1GL', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/1GL> [accessed 11 February 2012] |
| Chicago | "1GL", http://www.acronymgeek.com/1GL (accessed February 11, 2012). |
| CBE/CSE | 1GL [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/1GL. |
| Bluebook | 1GL, http://www.acronymgeek.com/1GL (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 1GL, http://www.acronymgeek.com/1GL (optional description here) (as of Feb. 11, 2012, 17:25). |
| AMA | 1GL. Acronym Geek. February 11, 2012, 17:25. Available at: http://www.acronymgeek.com/1GL. Accessed February 11, 2012, 17:25. |