| APA | QDFS. (2012, February 16). In Acronym Geek. Retrieved 01:43, February 16, 2012, from http://www.acronymgeek.com/QDFS |
| MLA | "QDFS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/QDFS>. |
| MHRA | 'QDFS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/QDFS> [accessed 16 February 2012] |
| Chicago | "QDFS", http://www.acronymgeek.com/QDFS (accessed February 16, 2012). |
| CBE/CSE | QDFS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/QDFS. |
| Bluebook | QDFS, http://www.acronymgeek.com/QDFS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QDFS, http://www.acronymgeek.com/QDFS (optional description here) (as of Feb. 16, 2012, 01:43). |
| AMA | QDFS. Acronym Geek. February 16, 2012, 01:43. Available at: http://www.acronymgeek.com/QDFS. Accessed February 16, 2012, 01:43. |