| APA | COLS. (2012, February 16). In Acronym Geek. Retrieved 06:28, February 16, 2012, from http://www.acronymgeek.com/COLS |
| MLA | "COLS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/COLS>. |
| MHRA | 'COLS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/COLS> [accessed 16 February 2012] |
| Chicago | "COLS", http://www.acronymgeek.com/COLS (accessed February 16, 2012). |
| CBE/CSE | COLS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/COLS. |
| Bluebook | COLS, http://www.acronymgeek.com/COLS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, COLS, http://www.acronymgeek.com/COLS (optional description here) (as of Feb. 16, 2012, 06:28). |
| AMA | COLS. Acronym Geek. February 16, 2012, 06:28. Available at: http://www.acronymgeek.com/COLS. Accessed February 16, 2012, 06:28. |