| APA | IGL. (2012, February 14). In Acronym Geek. Retrieved 06:39, February 14, 2012, from http://www.acronymgeek.com/IGL |
| MLA | "IGL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/IGL>. |
| MHRA | 'IGL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/IGL> [accessed 14 February 2012] |
| Chicago | "IGL", http://www.acronymgeek.com/IGL (accessed February 14, 2012). |
| CBE/CSE | IGL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/IGL. |
| Bluebook | IGL, http://www.acronymgeek.com/IGL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IGL, http://www.acronymgeek.com/IGL (optional description here) (as of Feb. 14, 2012, 06:39). |
| AMA | IGL. Acronym Geek. February 14, 2012, 06:39. Available at: http://www.acronymgeek.com/IGL. Accessed February 14, 2012, 06:39. |