| APA | GYO. (2012, February 14). In Acronym Geek. Retrieved 10:13, February 14, 2012, from http://www.acronymgeek.com/GYO |
| MLA | "GYO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GYO>. |
| MHRA | 'GYO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GYO> [accessed 14 February 2012] |
| Chicago | "GYO", http://www.acronymgeek.com/GYO (accessed February 14, 2012). |
| CBE/CSE | GYO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GYO. |
| Bluebook | GYO, http://www.acronymgeek.com/GYO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GYO, http://www.acronymgeek.com/GYO (optional description here) (as of Feb. 14, 2012, 10:13). |
| AMA | GYO. Acronym Geek. February 14, 2012, 10:13. Available at: http://www.acronymgeek.com/GYO. Accessed February 14, 2012, 10:13. |