| APA | GCGN. (2012, February 15). In Acronym Geek. Retrieved 19:52, February 15, 2012, from http://www.acronymgeek.com/GCGN |
| MLA | "GCGN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GCGN>. |
| MHRA | 'GCGN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GCGN> [accessed 15 February 2012] |
| Chicago | "GCGN", http://www.acronymgeek.com/GCGN (accessed February 15, 2012). |
| CBE/CSE | GCGN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GCGN. |
| Bluebook | GCGN, http://www.acronymgeek.com/GCGN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GCGN, http://www.acronymgeek.com/GCGN (optional description here) (as of Feb. 15, 2012, 19:52). |
| AMA | GCGN. Acronym Geek. February 15, 2012, 19:52. Available at: http://www.acronymgeek.com/GCGN. Accessed February 15, 2012, 19:52. |