| APA | ZEEL. (2012, February 17). In Acronym Geek. Retrieved 00:13, February 17, 2012, from http://www.acronymgeek.com/ZEEL |
| MLA | "ZEEL." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/ZEEL>. |
| MHRA | 'ZEEL', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/ZEEL> [accessed 17 February 2012] |
| Chicago | "ZEEL", http://www.acronymgeek.com/ZEEL (accessed February 17, 2012). |
| CBE/CSE | ZEEL [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/ZEEL. |
| Bluebook | ZEEL, http://www.acronymgeek.com/ZEEL (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZEEL, http://www.acronymgeek.com/ZEEL (optional description here) (as of Feb. 17, 2012, 00:13). |
| AMA | ZEEL. Acronym Geek. February 17, 2012, 00:13. Available at: http://www.acronymgeek.com/ZEEL. Accessed February 17, 2012, 00:13. |