| APA | GZCI. (2012, February 15). In Acronym Geek. Retrieved 10:56, February 15, 2012, from http://www.acronymgeek.com/GZCI |
| MLA | "GZCI." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GZCI>. |
| MHRA | 'GZCI', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GZCI> [accessed 15 February 2012] |
| Chicago | "GZCI", http://www.acronymgeek.com/GZCI (accessed February 15, 2012). |
| CBE/CSE | GZCI [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GZCI. |
| Bluebook | GZCI, http://www.acronymgeek.com/GZCI (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GZCI, http://www.acronymgeek.com/GZCI (optional description here) (as of Feb. 15, 2012, 10:56). |
| AMA | GZCI. Acronym Geek. February 15, 2012, 10:56. Available at: http://www.acronymgeek.com/GZCI. Accessed February 15, 2012, 10:56. |