| APA | GDEI. (2012, February 16). In Acronym Geek. Retrieved 03:11, February 16, 2012, from http://www.acronymgeek.com/GDEI |
| MLA | "GDEI." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GDEI>. |
| MHRA | 'GDEI', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GDEI> [accessed 16 February 2012] |
| Chicago | "GDEI", http://www.acronymgeek.com/GDEI (accessed February 16, 2012). |
| CBE/CSE | GDEI [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GDEI. |
| Bluebook | GDEI, http://www.acronymgeek.com/GDEI (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GDEI, http://www.acronymgeek.com/GDEI (optional description here) (as of Feb. 16, 2012, 03:11). |
| AMA | GDEI. Acronym Geek. February 16, 2012, 03:11. Available at: http://www.acronymgeek.com/GDEI. Accessed February 16, 2012, 03:11. |