| APA | GY1. (2012, February 11). In Acronym Geek. Retrieved 22:57, February 11, 2012, from http://www.acronymgeek.com/GY1 |
| MLA | "GY1." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/GY1>. |
| MHRA | 'GY1', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/GY1> [accessed 11 February 2012] |
| Chicago | "GY1", http://www.acronymgeek.com/GY1 (accessed February 11, 2012). |
| CBE/CSE | GY1 [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/GY1. |
| Bluebook | GY1, http://www.acronymgeek.com/GY1 (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GY1, http://www.acronymgeek.com/GY1 (optional description here) (as of Feb. 11, 2012, 22:57). |
| AMA | GY1. Acronym Geek. February 11, 2012, 22:57. Available at: http://www.acronymgeek.com/GY1. Accessed February 11, 2012, 22:57. |