| APA | ZRDP. (2012, February 15). In Acronym Geek. Retrieved 11:42, February 15, 2012, from http://www.acronymgeek.com/ZRDP |
| MLA | "ZRDP." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ZRDP>. |
| MHRA | 'ZRDP', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ZRDP> [accessed 15 February 2012] |
| Chicago | "ZRDP", http://www.acronymgeek.com/ZRDP (accessed February 15, 2012). |
| CBE/CSE | ZRDP [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ZRDP. |
| Bluebook | ZRDP, http://www.acronymgeek.com/ZRDP (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZRDP, http://www.acronymgeek.com/ZRDP (optional description here) (as of Feb. 15, 2012, 11:42). |
| AMA | ZRDP. Acronym Geek. February 15, 2012, 11:42. Available at: http://www.acronymgeek.com/ZRDP. Accessed February 15, 2012, 11:42. |