| APA | GTF. (2012, February 13). In Acronym Geek. Retrieved 23:20, February 13, 2012, from http://www.acronymgeek.com/GTF |
| MLA | "GTF." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/GTF>. |
| MHRA | 'GTF', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/GTF> [accessed 13 February 2012] |
| Chicago | "GTF", http://www.acronymgeek.com/GTF (accessed February 13, 2012). |
| CBE/CSE | GTF [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/GTF. |
| Bluebook | GTF, http://www.acronymgeek.com/GTF (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GTF, http://www.acronymgeek.com/GTF (optional description here) (as of Feb. 13, 2012, 23:20). |
| AMA | GTF. Acronym Geek. February 13, 2012, 23:20. Available at: http://www.acronymgeek.com/GTF. Accessed February 13, 2012, 23:20. |