| APA | ZUL. (2012, February 12). In Acronym Geek. Retrieved 07:06, February 12, 2012, from http://www.acronymgeek.com/ZUL |
| MLA | "ZUL." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/ZUL>. |
| MHRA | 'ZUL', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/ZUL> [accessed 12 February 2012] |
| Chicago | "ZUL", http://www.acronymgeek.com/ZUL (accessed February 12, 2012). |
| CBE/CSE | ZUL [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/ZUL. |
| Bluebook | ZUL, http://www.acronymgeek.com/ZUL (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZUL, http://www.acronymgeek.com/ZUL (optional description here) (as of Feb. 12, 2012, 07:06). |
| AMA | ZUL. Acronym Geek. February 12, 2012, 07:06. Available at: http://www.acronymgeek.com/ZUL. Accessed February 12, 2012, 07:06. |