| APA | ZLD. (2012, February 14). In Acronym Geek. Retrieved 09:07, February 14, 2012, from http://www.acronymgeek.com/ZLD |
| MLA | "ZLD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ZLD>. |
| MHRA | 'ZLD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ZLD> [accessed 14 February 2012] |
| Chicago | "ZLD", http://www.acronymgeek.com/ZLD (accessed February 14, 2012). |
| CBE/CSE | ZLD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ZLD. |
| Bluebook | ZLD, http://www.acronymgeek.com/ZLD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZLD, http://www.acronymgeek.com/ZLD (optional description here) (as of Feb. 14, 2012, 09:07). |
| AMA | ZLD. Acronym Geek. February 14, 2012, 09:07. Available at: http://www.acronymgeek.com/ZLD. Accessed February 14, 2012, 09:07. |