| APA | ZDT. (2012, February 14). In Acronym Geek. Retrieved 03:44, February 14, 2012, from http://www.acronymgeek.com/ZDT |
| MLA | "ZDT." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ZDT>. |
| MHRA | 'ZDT', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ZDT> [accessed 14 February 2012] |
| Chicago | "ZDT", http://www.acronymgeek.com/ZDT (accessed February 14, 2012). |
| CBE/CSE | ZDT [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ZDT. |
| Bluebook | ZDT, http://www.acronymgeek.com/ZDT (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZDT, http://www.acronymgeek.com/ZDT (optional description here) (as of Feb. 14, 2012, 03:44). |
| AMA | ZDT. Acronym Geek. February 14, 2012, 03:44. Available at: http://www.acronymgeek.com/ZDT. Accessed February 14, 2012, 03:44. |