| APA | COSG. (2012, February 16). In Acronym Geek. Retrieved 06:00, February 16, 2012, from http://www.acronymgeek.com/COSG |
| MLA | "COSG." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/COSG>. |
| MHRA | 'COSG', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/COSG> [accessed 16 February 2012] |
| Chicago | "COSG", http://www.acronymgeek.com/COSG (accessed February 16, 2012). |
| CBE/CSE | COSG [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/COSG. |
| Bluebook | COSG, http://www.acronymgeek.com/COSG (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, COSG, http://www.acronymgeek.com/COSG (optional description here) (as of Feb. 16, 2012, 06:00). |
| AMA | COSG. Acronym Geek. February 16, 2012, 06:00. Available at: http://www.acronymgeek.com/COSG. Accessed February 16, 2012, 06:00. |