| APA | ZROA. (2012, February 16). In Acronym Geek. Retrieved 17:30, February 16, 2012, from http://www.acronymgeek.com/ZROA |
| MLA | "ZROA." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ZROA>. |
| MHRA | 'ZROA', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ZROA> [accessed 16 February 2012] |
| Chicago | "ZROA", http://www.acronymgeek.com/ZROA (accessed February 16, 2012). |
| CBE/CSE | ZROA [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ZROA. |
| Bluebook | ZROA, http://www.acronymgeek.com/ZROA (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZROA, http://www.acronymgeek.com/ZROA (optional description here) (as of Feb. 16, 2012, 17:30). |
| AMA | ZROA. Acronym Geek. February 16, 2012, 17:30. Available at: http://www.acronymgeek.com/ZROA. Accessed February 16, 2012, 17:30. |