| APA | CH. (2012, February 14). In Acronym Geek. Retrieved 06:12, February 14, 2012, from http://www.acronymgeek.com/CH |
| MLA | "CH." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CH>. |
| MHRA | 'CH', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CH> [accessed 14 February 2012] |
| Chicago | "CH", http://www.acronymgeek.com/CH (accessed February 14, 2012). |
| CBE/CSE | CH [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CH. |
| Bluebook | CH, http://www.acronymgeek.com/CH (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CH, http://www.acronymgeek.com/CH (optional description here) (as of Feb. 14, 2012, 06:12). |
| AMA | CH. Acronym Geek. February 14, 2012, 06:12. Available at: http://www.acronymgeek.com/CH. Accessed February 14, 2012, 06:12. |