| APA | GZSY. (2012, February 17). In Acronym Geek. Retrieved 08:05, February 17, 2012, from http://www.acronymgeek.com/GZSY |
| MLA | "GZSY." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/GZSY>. |
| MHRA | 'GZSY', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/GZSY> [accessed 17 February 2012] |
| Chicago | "GZSY", http://www.acronymgeek.com/GZSY (accessed February 17, 2012). |
| CBE/CSE | GZSY [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/GZSY. |
| Bluebook | GZSY, http://www.acronymgeek.com/GZSY (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GZSY, http://www.acronymgeek.com/GZSY (optional description here) (as of Feb. 17, 2012, 08:05). |
| AMA | GZSY. Acronym Geek. February 17, 2012, 08:05. Available at: http://www.acronymgeek.com/GZSY. Accessed February 17, 2012, 08:05. |