| APA | LDYF. (2012, February 14). In Acronym Geek. Retrieved 14:18, February 14, 2012, from http://www.acronymgeek.com/LDYF |
| MLA | "LDYF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/LDYF>. |
| MHRA | 'LDYF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/LDYF> [accessed 14 February 2012] |
| Chicago | "LDYF", http://www.acronymgeek.com/LDYF (accessed February 14, 2012). |
| CBE/CSE | LDYF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/LDYF. |
| Bluebook | LDYF, http://www.acronymgeek.com/LDYF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LDYF, http://www.acronymgeek.com/LDYF (optional description here) (as of Feb. 14, 2012, 14:18). |
| AMA | LDYF. Acronym Geek. February 14, 2012, 14:18. Available at: http://www.acronymgeek.com/LDYF. Accessed February 14, 2012, 14:18. |