| APA | ZUOK. (2012, February 17). In Acronym Geek. Retrieved 06:14, February 17, 2012, from http://www.acronymgeek.com/ZUOK |
| MLA | "ZUOK." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/ZUOK>. |
| MHRA | 'ZUOK', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/ZUOK> [accessed 17 February 2012] |
| Chicago | "ZUOK", http://www.acronymgeek.com/ZUOK (accessed February 17, 2012). |
| CBE/CSE | ZUOK [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/ZUOK. |
| Bluebook | ZUOK, http://www.acronymgeek.com/ZUOK (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZUOK, http://www.acronymgeek.com/ZUOK (optional description here) (as of Feb. 17, 2012, 06:14). |
| AMA | ZUOK. Acronym Geek. February 17, 2012, 06:14. Available at: http://www.acronymgeek.com/ZUOK. Accessed February 17, 2012, 06:14. |