| APA | GCCS. (2012, February 9). In Acronym Geek. Retrieved 20:15, February 9, 2012, from http://www.acronymgeek.com/GCCS |
| MLA | "GCCS." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/GCCS>. |
| MHRA | 'GCCS', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/GCCS> [accessed 9 February 2012] |
| Chicago | "GCCS", http://www.acronymgeek.com/GCCS (accessed February 9, 2012). |
| CBE/CSE | GCCS [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/GCCS. |
| Bluebook | GCCS, http://www.acronymgeek.com/GCCS (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GCCS, http://www.acronymgeek.com/GCCS (optional description here) (as of Feb. 9, 2012, 20:15). |
| AMA | GCCS. Acronym Geek. February 9, 2012, 20:15. Available at: http://www.acronymgeek.com/GCCS. Accessed February 9, 2012, 20:15. |