| APA | GFDI. (2012, February 12). In Acronym Geek. Retrieved 01:34, February 12, 2012, from http://www.acronymgeek.com/GFDI |
| MLA | "GFDI." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/GFDI>. |
| MHRA | 'GFDI', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/GFDI> [accessed 12 February 2012] |
| Chicago | "GFDI", http://www.acronymgeek.com/GFDI (accessed February 12, 2012). |
| CBE/CSE | GFDI [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/GFDI. |
| Bluebook | GFDI, http://www.acronymgeek.com/GFDI (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GFDI, http://www.acronymgeek.com/GFDI (optional description here) (as of Feb. 12, 2012, 01:34). |
| AMA | GFDI. Acronym Geek. February 12, 2012, 01:34. Available at: http://www.acronymgeek.com/GFDI. Accessed February 12, 2012, 01:34. |