| APA | GYEF. (2012, February 15). In Acronym Geek. Retrieved 20:30, February 15, 2012, from http://www.acronymgeek.com/GYEF |
| MLA | "GYEF." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GYEF>. |
| MHRA | 'GYEF', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GYEF> [accessed 15 February 2012] |
| Chicago | "GYEF", http://www.acronymgeek.com/GYEF (accessed February 15, 2012). |
| CBE/CSE | GYEF [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GYEF. |
| Bluebook | GYEF, http://www.acronymgeek.com/GYEF (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GYEF, http://www.acronymgeek.com/GYEF (optional description here) (as of Feb. 15, 2012, 20:30). |
| AMA | GYEF. Acronym Geek. February 15, 2012, 20:30. Available at: http://www.acronymgeek.com/GYEF. Accessed February 15, 2012, 20:30. |