| APA | CTYD. (2012, February 15). In Acronym Geek. Retrieved 04:42, February 15, 2012, from http://www.acronymgeek.com/CTYD |
| MLA | "CTYD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CTYD>. |
| MHRA | 'CTYD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CTYD> [accessed 15 February 2012] |
| Chicago | "CTYD", http://www.acronymgeek.com/CTYD (accessed February 15, 2012). |
| CBE/CSE | CTYD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CTYD. |
| Bluebook | CTYD, http://www.acronymgeek.com/CTYD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CTYD, http://www.acronymgeek.com/CTYD (optional description here) (as of Feb. 15, 2012, 04:42). |
| AMA | CTYD. Acronym Geek. February 15, 2012, 04:42. Available at: http://www.acronymgeek.com/CTYD. Accessed February 15, 2012, 04:42. |