| APA | DOCU. (2012, February 16). In Acronym Geek. Retrieved 00:45, February 16, 2012, from http://www.acronymgeek.com/DOCU |
| MLA | "DOCU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/DOCU>. |
| MHRA | 'DOCU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/DOCU> [accessed 16 February 2012] |
| Chicago | "DOCU", http://www.acronymgeek.com/DOCU (accessed February 16, 2012). |
| CBE/CSE | DOCU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/DOCU. |
| Bluebook | DOCU, http://www.acronymgeek.com/DOCU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DOCU, http://www.acronymgeek.com/DOCU (optional description here) (as of Feb. 16, 2012, 00:45). |
| AMA | DOCU. Acronym Geek. February 16, 2012, 00:45. Available at: http://www.acronymgeek.com/DOCU. Accessed February 16, 2012, 00:45. |