| APA | ZRKB. (2012, February 16). In Acronym Geek. Retrieved 04:00, February 16, 2012, from http://www.acronymgeek.com/ZRKB |
| MLA | "ZRKB." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ZRKB>. |
| MHRA | 'ZRKB', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ZRKB> [accessed 16 February 2012] |
| Chicago | "ZRKB", http://www.acronymgeek.com/ZRKB (accessed February 16, 2012). |
| CBE/CSE | ZRKB [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ZRKB. |
| Bluebook | ZRKB, http://www.acronymgeek.com/ZRKB (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZRKB, http://www.acronymgeek.com/ZRKB (optional description here) (as of Feb. 16, 2012, 04:00). |
| AMA | ZRKB. Acronym Geek. February 16, 2012, 04:00. Available at: http://www.acronymgeek.com/ZRKB. Accessed February 16, 2012, 04:00. |