| APA | QFDI. (2012, February 15). In Acronym Geek. Retrieved 21:46, February 15, 2012, from http://www.acronymgeek.com/QFDI |
| MLA | "QFDI." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/QFDI>. |
| MHRA | 'QFDI', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/QFDI> [accessed 15 February 2012] |
| Chicago | "QFDI", http://www.acronymgeek.com/QFDI (accessed February 15, 2012). |
| CBE/CSE | QFDI [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/QFDI. |
| Bluebook | QFDI, http://www.acronymgeek.com/QFDI (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QFDI, http://www.acronymgeek.com/QFDI (optional description here) (as of Feb. 15, 2012, 21:46). |
| AMA | QFDI. Acronym Geek. February 15, 2012, 21:46. Available at: http://www.acronymgeek.com/QFDI. Accessed February 15, 2012, 21:46. |