| APA | UDGI. (2012, February 16). In Acronym Geek. Retrieved 08:12, February 16, 2012, from http://www.acronymgeek.com/UDGI |
| MLA | "UDGI." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/UDGI>. |
| MHRA | 'UDGI', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/UDGI> [accessed 16 February 2012] |
| Chicago | "UDGI", http://www.acronymgeek.com/UDGI (accessed February 16, 2012). |
| CBE/CSE | UDGI [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/UDGI. |
| Bluebook | UDGI, http://www.acronymgeek.com/UDGI (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UDGI, http://www.acronymgeek.com/UDGI (optional description here) (as of Feb. 16, 2012, 08:12). |
| AMA | UDGI. Acronym Geek. February 16, 2012, 08:12. Available at: http://www.acronymgeek.com/UDGI. Accessed February 16, 2012, 08:12. |