| APA | QUFD. (2012, February 17). In Acronym Geek. Retrieved 01:08, February 17, 2012, from http://www.acronymgeek.com/QUFD |
| MLA | "QUFD." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/QUFD>. |
| MHRA | 'QUFD', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/QUFD> [accessed 17 February 2012] |
| Chicago | "QUFD", http://www.acronymgeek.com/QUFD (accessed February 17, 2012). |
| CBE/CSE | QUFD [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/QUFD. |
| Bluebook | QUFD, http://www.acronymgeek.com/QUFD (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QUFD, http://www.acronymgeek.com/QUFD (optional description here) (as of Feb. 17, 2012, 01:08). |
| AMA | QUFD. Acronym Geek. February 17, 2012, 01:08. Available at: http://www.acronymgeek.com/QUFD. Accessed February 17, 2012, 01:08. |