| APA | ZULS. (2012, February 11). In Acronym Geek. Retrieved 21:25, February 11, 2012, from http://www.acronymgeek.com/ZULS |
| MLA | "ZULS." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/ZULS>. |
| MHRA | 'ZULS', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/ZULS> [accessed 11 February 2012] |
| Chicago | "ZULS", http://www.acronymgeek.com/ZULS (accessed February 11, 2012). |
| CBE/CSE | ZULS [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/ZULS. |
| Bluebook | ZULS, http://www.acronymgeek.com/ZULS (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZULS, http://www.acronymgeek.com/ZULS (optional description here) (as of Feb. 11, 2012, 21:25). |
| AMA | ZULS. Acronym Geek. February 11, 2012, 21:25. Available at: http://www.acronymgeek.com/ZULS. Accessed February 11, 2012, 21:25. |