| APA | ZRG. (2012, February 14). In Acronym Geek. Retrieved 02:14, February 14, 2012, from http://www.acronymgeek.com/ZRG |
| MLA | "ZRG." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ZRG>. |
| MHRA | 'ZRG', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ZRG> [accessed 14 February 2012] |
| Chicago | "ZRG", http://www.acronymgeek.com/ZRG (accessed February 14, 2012). |
| CBE/CSE | ZRG [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ZRG. |
| Bluebook | ZRG, http://www.acronymgeek.com/ZRG (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZRG, http://www.acronymgeek.com/ZRG (optional description here) (as of Feb. 14, 2012, 02:14). |
| AMA | ZRG. Acronym Geek. February 14, 2012, 02:14. Available at: http://www.acronymgeek.com/ZRG. Accessed February 14, 2012, 02:14. |