| APA | GKC. (2012, February 11). In Acronym Geek. Retrieved 22:33, February 11, 2012, from http://www.acronymgeek.com/GKC |
| MLA | "GKC." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/GKC>. |
| MHRA | 'GKC', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/GKC> [accessed 11 February 2012] |
| Chicago | "GKC", http://www.acronymgeek.com/GKC (accessed February 11, 2012). |
| CBE/CSE | GKC [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/GKC. |
| Bluebook | GKC, http://www.acronymgeek.com/GKC (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GKC, http://www.acronymgeek.com/GKC (optional description here) (as of Feb. 11, 2012, 22:33). |
| AMA | GKC. Acronym Geek. February 11, 2012, 22:33. Available at: http://www.acronymgeek.com/GKC. Accessed February 11, 2012, 22:33. |