| APA | GYEO. (2012, February 16). In Acronym Geek. Retrieved 16:39, February 16, 2012, from http://www.acronymgeek.com/GYEO |
| MLA | "GYEO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GYEO>. |
| MHRA | 'GYEO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GYEO> [accessed 16 February 2012] |
| Chicago | "GYEO", http://www.acronymgeek.com/GYEO (accessed February 16, 2012). |
| CBE/CSE | GYEO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GYEO. |
| Bluebook | GYEO, http://www.acronymgeek.com/GYEO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GYEO, http://www.acronymgeek.com/GYEO (optional description here) (as of Feb. 16, 2012, 16:39). |
| AMA | GYEO. Acronym Geek. February 16, 2012, 16:39. Available at: http://www.acronymgeek.com/GYEO. Accessed February 16, 2012, 16:39. |