| APA | ZREC. (2012, February 17). In Acronym Geek. Retrieved 01:35, February 17, 2012, from http://www.acronymgeek.com/ZREC |
| MLA | "ZREC." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/ZREC>. |
| MHRA | 'ZREC', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/ZREC> [accessed 17 February 2012] |
| Chicago | "ZREC", http://www.acronymgeek.com/ZREC (accessed February 17, 2012). |
| CBE/CSE | ZREC [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/ZREC. |
| Bluebook | ZREC, http://www.acronymgeek.com/ZREC (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZREC, http://www.acronymgeek.com/ZREC (optional description here) (as of Feb. 17, 2012, 01:35). |
| AMA | ZREC. Acronym Geek. February 17, 2012, 01:35. Available at: http://www.acronymgeek.com/ZREC. Accessed February 17, 2012, 01:35. |