| APA | CD9. (2012, February 12). In Acronym Geek. Retrieved 07:00, February 12, 2012, from http://www.acronymgeek.com/CD9 |
| MLA | "CD9." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/CD9>. |
| MHRA | 'CD9', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/CD9> [accessed 12 February 2012] |
| Chicago | "CD9", http://www.acronymgeek.com/CD9 (accessed February 12, 2012). |
| CBE/CSE | CD9 [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/CD9. |
| Bluebook | CD9, http://www.acronymgeek.com/CD9 (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CD9, http://www.acronymgeek.com/CD9 (optional description here) (as of Feb. 12, 2012, 07:00). |
| AMA | CD9. Acronym Geek. February 12, 2012, 07:00. Available at: http://www.acronymgeek.com/CD9. Accessed February 12, 2012, 07:00. |