| APA | 9Y. (2012, February 14). In Acronym Geek. Retrieved 06:53, February 14, 2012, from http://www.acronymgeek.com/9Y |
| MLA | "9Y." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/9Y>. |
| MHRA | '9Y', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/9Y> [accessed 14 February 2012] |
| Chicago | "9Y", http://www.acronymgeek.com/9Y (accessed February 14, 2012). |
| CBE/CSE | 9Y [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/9Y. |
| Bluebook | 9Y, http://www.acronymgeek.com/9Y (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 9Y, http://www.acronymgeek.com/9Y (optional description here) (as of Feb. 14, 2012, 06:53). |
| AMA | 9Y. Acronym Geek. February 14, 2012, 06:53. Available at: http://www.acronymgeek.com/9Y. Accessed February 14, 2012, 06:53. |