| APA | COGS. (2012, February 9). In Acronym Geek. Retrieved 21:29, February 9, 2012, from http://www.acronymgeek.com/COGS |
| MLA | "COGS." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/COGS>. |
| MHRA | 'COGS', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/COGS> [accessed 9 February 2012] |
| Chicago | "COGS", http://www.acronymgeek.com/COGS (accessed February 9, 2012). |
| CBE/CSE | COGS [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/COGS. |
| Bluebook | COGS, http://www.acronymgeek.com/COGS (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, COGS, http://www.acronymgeek.com/COGS (optional description here) (as of Feb. 9, 2012, 21:29). |
| AMA | COGS. Acronym Geek. February 9, 2012, 21:29. Available at: http://www.acronymgeek.com/COGS. Accessed February 9, 2012, 21:29. |