| APA | DF1. (2012, February 13). In Acronym Geek. Retrieved 23:34, February 13, 2012, from http://www.acronymgeek.com/DF1 |
| MLA | "DF1." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/DF1>. |
| MHRA | 'DF1', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/DF1> [accessed 13 February 2012] |
| Chicago | "DF1", http://www.acronymgeek.com/DF1 (accessed February 13, 2012). |
| CBE/CSE | DF1 [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/DF1. |
| Bluebook | DF1, http://www.acronymgeek.com/DF1 (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DF1, http://www.acronymgeek.com/DF1 (optional description here) (as of Feb. 13, 2012, 23:34). |
| AMA | DF1. Acronym Geek. February 13, 2012, 23:34. Available at: http://www.acronymgeek.com/DF1. Accessed February 13, 2012, 23:34. |