| APA | REN. (2012, February 13). In Acronym Geek. Retrieved 20:58, February 13, 2012, from http://www.acronymgeek.com/REN |
| MLA | "REN." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/REN>. |
| MHRA | 'REN', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/REN> [accessed 13 February 2012] |
| Chicago | "REN", http://www.acronymgeek.com/REN (accessed February 13, 2012). |
| CBE/CSE | REN [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/REN. |
| Bluebook | REN, http://www.acronymgeek.com/REN (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, REN, http://www.acronymgeek.com/REN (optional description here) (as of Feb. 13, 2012, 20:58). |
| AMA | REN. Acronym Geek. February 13, 2012, 20:58. Available at: http://www.acronymgeek.com/REN. Accessed February 13, 2012, 20:58. |