| APA | ZRF. (2012, February 14). In Acronym Geek. Retrieved 01:12, February 14, 2012, from http://www.acronymgeek.com/ZRF |
| MLA | "ZRF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ZRF>. |
| MHRA | 'ZRF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ZRF> [accessed 14 February 2012] |
| Chicago | "ZRF", http://www.acronymgeek.com/ZRF (accessed February 14, 2012). |
| CBE/CSE | ZRF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ZRF. |
| Bluebook | ZRF, http://www.acronymgeek.com/ZRF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZRF, http://www.acronymgeek.com/ZRF (optional description here) (as of Feb. 14, 2012, 01:12). |
| AMA | ZRF. Acronym Geek. February 14, 2012, 01:12. Available at: http://www.acronymgeek.com/ZRF. Accessed February 14, 2012, 01:12. |