| APA | GREC. (2012, February 15). In Acronym Geek. Retrieved 01:14, February 15, 2012, from http://www.acronymgeek.com/GREC |
| MLA | "GREC." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GREC>. |
| MHRA | 'GREC', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GREC> [accessed 15 February 2012] |
| Chicago | "GREC", http://www.acronymgeek.com/GREC (accessed February 15, 2012). |
| CBE/CSE | GREC [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GREC. |
| Bluebook | GREC, http://www.acronymgeek.com/GREC (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GREC, http://www.acronymgeek.com/GREC (optional description here) (as of Feb. 15, 2012, 01:14). |
| AMA | GREC. Acronym Geek. February 15, 2012, 01:14. Available at: http://www.acronymgeek.com/GREC. Accessed February 15, 2012, 01:14. |