| APA | GDE. (2012, February 14). In Acronym Geek. Retrieved 03:57, February 14, 2012, from http://www.acronymgeek.com/GDE |
| MLA | "GDE." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GDE>. |
| MHRA | 'GDE', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GDE> [accessed 14 February 2012] |
| Chicago | "GDE", http://www.acronymgeek.com/GDE (accessed February 14, 2012). |
| CBE/CSE | GDE [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GDE. |
| Bluebook | GDE, http://www.acronymgeek.com/GDE (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GDE, http://www.acronymgeek.com/GDE (optional description here) (as of Feb. 14, 2012, 03:57). |
| AMA | GDE. Acronym Geek. February 14, 2012, 03:57. Available at: http://www.acronymgeek.com/GDE. Accessed February 14, 2012, 03:57. |