| APA | GREB. (2012, February 15). In Acronym Geek. Retrieved 18:25, February 15, 2012, from http://www.acronymgeek.com/GREB |
| MLA | "GREB." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GREB>. |
| MHRA | 'GREB', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GREB> [accessed 15 February 2012] |
| Chicago | "GREB", http://www.acronymgeek.com/GREB (accessed February 15, 2012). |
| CBE/CSE | GREB [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GREB. |
| Bluebook | GREB, http://www.acronymgeek.com/GREB (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GREB, http://www.acronymgeek.com/GREB (optional description here) (as of Feb. 15, 2012, 18:25). |
| AMA | GREB. Acronym Geek. February 15, 2012, 18:25. Available at: http://www.acronymgeek.com/GREB. Accessed February 15, 2012, 18:25. |