| APA | IDUP. (2012, February 17). In Acronym Geek. Retrieved 08:04, February 17, 2012, from http://www.acronymgeek.com/IDUP |
| MLA | "IDUP." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/IDUP>. |
| MHRA | 'IDUP', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/IDUP> [accessed 17 February 2012] |
| Chicago | "IDUP", http://www.acronymgeek.com/IDUP (accessed February 17, 2012). |
| CBE/CSE | IDUP [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/IDUP. |
| Bluebook | IDUP, http://www.acronymgeek.com/IDUP (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IDUP, http://www.acronymgeek.com/IDUP (optional description here) (as of Feb. 17, 2012, 08:04). |
| AMA | IDUP. Acronym Geek. February 17, 2012, 08:04. Available at: http://www.acronymgeek.com/IDUP. Accessed February 17, 2012, 08:04. |