| APA | ZDRN. (2012, February 15). In Acronym Geek. Retrieved 07:38, February 15, 2012, from http://www.acronymgeek.com/ZDRN |
| MLA | "ZDRN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ZDRN>. |
| MHRA | 'ZDRN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ZDRN> [accessed 15 February 2012] |
| Chicago | "ZDRN", http://www.acronymgeek.com/ZDRN (accessed February 15, 2012). |
| CBE/CSE | ZDRN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ZDRN. |
| Bluebook | ZDRN, http://www.acronymgeek.com/ZDRN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZDRN, http://www.acronymgeek.com/ZDRN (optional description here) (as of Feb. 15, 2012, 07:38). |
| AMA | ZDRN. Acronym Geek. February 15, 2012, 07:38. Available at: http://www.acronymgeek.com/ZDRN. Accessed February 15, 2012, 07:38. |