| APA | ABU. (2012, February 10). In Acronym Geek. Retrieved 10:45, February 10, 2012, from http://www.acronymgeek.com/ABU |
| MLA | "ABU." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/ABU>. |
| MHRA | 'ABU', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/ABU> [accessed 10 February 2012] |
| Chicago | "ABU", http://www.acronymgeek.com/ABU (accessed February 10, 2012). |
| CBE/CSE | ABU [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/ABU. |
| Bluebook | ABU, http://www.acronymgeek.com/ABU (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ABU, http://www.acronymgeek.com/ABU (optional description here) (as of Feb. 10, 2012, 10:45). |
| AMA | ABU. Acronym Geek. February 10, 2012, 10:45. Available at: http://www.acronymgeek.com/ABU. Accessed February 10, 2012, 10:45. |