| Style | Reference Text |
|---|
| APA | 4YI. (2010, February 9). In Acronym Geek. Retrieved 23:54, February 9, 2010, from http://www.acronymgeek.com/4YI |
| MLA | "4YI." Acronym Geek. 9 Feb 2010, 23:54. Acronym Geek. 9 Feb 2010 <http://www.acronymgeek.com/4YI>. |
| MHRA | '4YI', Acronym Geek, 9 February 2010, 23:54, <http://www.acronymgeek.com/4YI> [accessed 9 February 2010] |
| Chicago | "4YI," http://www.acronymgeek.com/4YI (accessed February 9, 2010). |
| CBE/CSE | 4YI [Internet]. Acronym Geek; 2010 Feb 9, 23:54 [cited 2010 Feb 9]. Available from: http://www.acronymgeek.com/4YI. |
| Bluebook | 4YI, http://www.acronymgeek.com/4YI (last visited February 9, 2010). |
| Bluebook: Harvard JOLT | See Acronym Geek, 4YI, http://www.acronymgeek.com/4YI (optional description here) (as of Feb. 9, 2010, 23:54). |
| AMA | 4YI. Acronym Geek. February 9, 2010, 23:54. Available at: http://www.acronymgeek.com/4YI. Accessed February 9, 2010. |