| APA | CROO. (2012, February 15). In Acronym Geek. Retrieved 03:56, February 15, 2012, from http://www.acronymgeek.com/CROO |
| MLA | "CROO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CROO>. |
| MHRA | 'CROO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CROO> [accessed 15 February 2012] |
| Chicago | "CROO", http://www.acronymgeek.com/CROO (accessed February 15, 2012). |
| CBE/CSE | CROO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CROO. |
| Bluebook | CROO, http://www.acronymgeek.com/CROO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CROO, http://www.acronymgeek.com/CROO (optional description here) (as of Feb. 15, 2012, 03:56). |
| AMA | CROO. Acronym Geek. February 15, 2012, 03:56. Available at: http://www.acronymgeek.com/CROO. Accessed February 15, 2012, 03:56. |