| APA | ZULB. (2012, February 14). In Acronym Geek. Retrieved 17:26, February 14, 2012, from http://www.acronymgeek.com/ZULB |
| MLA | "ZULB." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ZULB>. |
| MHRA | 'ZULB', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ZULB> [accessed 14 February 2012] |
| Chicago | "ZULB", http://www.acronymgeek.com/ZULB (accessed February 14, 2012). |
| CBE/CSE | ZULB [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ZULB. |
| Bluebook | ZULB, http://www.acronymgeek.com/ZULB (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZULB, http://www.acronymgeek.com/ZULB (optional description here) (as of Feb. 14, 2012, 17:26). |
| AMA | ZULB. Acronym Geek. February 14, 2012, 17:26. Available at: http://www.acronymgeek.com/ZULB. Accessed February 14, 2012, 17:26. |