| APA | CLIO. (2012, February 15). In Acronym Geek. Retrieved 20:30, February 15, 2012, from http://www.acronymgeek.com/CLIO |
| MLA | "CLIO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CLIO>. |
| MHRA | 'CLIO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CLIO> [accessed 15 February 2012] |
| Chicago | "CLIO", http://www.acronymgeek.com/CLIO (accessed February 15, 2012). |
| CBE/CSE | CLIO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CLIO. |
| Bluebook | CLIO, http://www.acronymgeek.com/CLIO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CLIO, http://www.acronymgeek.com/CLIO (optional description here) (as of Feb. 15, 2012, 20:30). |
| AMA | CLIO. Acronym Geek. February 15, 2012, 20:30. Available at: http://www.acronymgeek.com/CLIO. Accessed February 15, 2012, 20:30. |