| APA | ZTRS. (2012, February 16). In Acronym Geek. Retrieved 05:05, February 16, 2012, from http://www.acronymgeek.com/ZTRS |
| MLA | "ZTRS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ZTRS>. |
| MHRA | 'ZTRS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ZTRS> [accessed 16 February 2012] |
| Chicago | "ZTRS", http://www.acronymgeek.com/ZTRS (accessed February 16, 2012). |
| CBE/CSE | ZTRS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ZTRS. |
| Bluebook | ZTRS, http://www.acronymgeek.com/ZTRS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZTRS, http://www.acronymgeek.com/ZTRS (optional description here) (as of Feb. 16, 2012, 05:05). |
| AMA | ZTRS. Acronym Geek. February 16, 2012, 05:05. Available at: http://www.acronymgeek.com/ZTRS. Accessed February 16, 2012, 05:05. |