| APA | CGS. (2012, February 14). In Acronym Geek. Retrieved 07:37, February 14, 2012, from http://www.acronymgeek.com/CGS |
| MLA | "CGS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CGS>. |
| MHRA | 'CGS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CGS> [accessed 14 February 2012] |
| Chicago | "CGS", http://www.acronymgeek.com/CGS (accessed February 14, 2012). |
| CBE/CSE | CGS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CGS. |
| Bluebook | CGS, http://www.acronymgeek.com/CGS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CGS, http://www.acronymgeek.com/CGS (optional description here) (as of Feb. 14, 2012, 07:37). |
| AMA | CGS. Acronym Geek. February 14, 2012, 07:37. Available at: http://www.acronymgeek.com/CGS. Accessed February 14, 2012, 07:37. |