| APA | DREI. (2012, February 11). In Acronym Geek. Retrieved 19:51, February 11, 2012, from http://www.acronymgeek.com/DREI |
| MLA | "DREI." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/DREI>. |
| MHRA | 'DREI', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/DREI> [accessed 11 February 2012] |
| Chicago | "DREI", http://www.acronymgeek.com/DREI (accessed February 11, 2012). |
| CBE/CSE | DREI [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/DREI. |
| Bluebook | DREI, http://www.acronymgeek.com/DREI (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DREI, http://www.acronymgeek.com/DREI (optional description here) (as of Feb. 11, 2012, 19:51). |
| AMA | DREI. Acronym Geek. February 11, 2012, 19:51. Available at: http://www.acronymgeek.com/DREI. Accessed February 11, 2012, 19:51. |