| APA | GYDO. (2012, February 14). In Acronym Geek. Retrieved 08:12, February 14, 2012, from http://www.acronymgeek.com/GYDO |
| MLA | "GYDO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GYDO>. |
| MHRA | 'GYDO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GYDO> [accessed 14 February 2012] |
| Chicago | "GYDO", http://www.acronymgeek.com/GYDO (accessed February 14, 2012). |
| CBE/CSE | GYDO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GYDO. |
| Bluebook | GYDO, http://www.acronymgeek.com/GYDO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GYDO, http://www.acronymgeek.com/GYDO (optional description here) (as of Feb. 14, 2012, 08:12). |
| AMA | GYDO. Acronym Geek. February 14, 2012, 08:12. Available at: http://www.acronymgeek.com/GYDO. Accessed February 14, 2012, 08:12. |