| APA | ZLS. (2012, February 14). In Acronym Geek. Retrieved 09:15, February 14, 2012, from http://www.acronymgeek.com/ZLS |
| MLA | "ZLS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ZLS>. |
| MHRA | 'ZLS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ZLS> [accessed 14 February 2012] |
| Chicago | "ZLS", http://www.acronymgeek.com/ZLS (accessed February 14, 2012). |
| CBE/CSE | ZLS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ZLS. |
| Bluebook | ZLS, http://www.acronymgeek.com/ZLS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZLS, http://www.acronymgeek.com/ZLS (optional description here) (as of Feb. 14, 2012, 09:15). |
| AMA | ZLS. Acronym Geek. February 14, 2012, 09:15. Available at: http://www.acronymgeek.com/ZLS. Accessed February 14, 2012, 09:15. |