| APA | CAS. (2012, February 14). In Acronym Geek. Retrieved 09:19, February 14, 2012, from http://www.acronymgeek.com/CAS |
| MLA | "CAS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CAS>. |
| MHRA | 'CAS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CAS> [accessed 14 February 2012] |
| Chicago | "CAS", http://www.acronymgeek.com/CAS (accessed February 14, 2012). |
| CBE/CSE | CAS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CAS. |
| Bluebook | CAS, http://www.acronymgeek.com/CAS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CAS, http://www.acronymgeek.com/CAS (optional description here) (as of Feb. 14, 2012, 09:19). |
| AMA | CAS. Acronym Geek. February 14, 2012, 09:19. Available at: http://www.acronymgeek.com/CAS. Accessed February 14, 2012, 09:19. |