| APA | DBU. (2012, February 9). In Acronym Geek. Retrieved 09:19, February 9, 2012, from http://www.acronymgeek.com/DBU |
| MLA | "DBU." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/DBU>. |
| MHRA | 'DBU', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/DBU> [accessed 9 February 2012] |
| Chicago | "DBU", http://www.acronymgeek.com/DBU (accessed February 9, 2012). |
| CBE/CSE | DBU [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/DBU. |
| Bluebook | DBU, http://www.acronymgeek.com/DBU (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DBU, http://www.acronymgeek.com/DBU (optional description here) (as of Feb. 9, 2012, 09:19). |
| AMA | DBU. Acronym Geek. February 9, 2012, 09:19. Available at: http://www.acronymgeek.com/DBU. Accessed February 9, 2012, 09:19. |