| APA | ZULO. (2012, February 16). In Acronym Geek. Retrieved 00:11, February 16, 2012, from http://www.acronymgeek.com/ZULO |
| MLA | "ZULO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ZULO>. |
| MHRA | 'ZULO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ZULO> [accessed 16 February 2012] |
| Chicago | "ZULO", http://www.acronymgeek.com/ZULO (accessed February 16, 2012). |
| CBE/CSE | ZULO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ZULO. |
| Bluebook | ZULO, http://www.acronymgeek.com/ZULO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZULO, http://www.acronymgeek.com/ZULO (optional description here) (as of Feb. 16, 2012, 00:11). |
| AMA | ZULO. Acronym Geek. February 16, 2012, 00:11. Available at: http://www.acronymgeek.com/ZULO. Accessed February 16, 2012, 00:11. |