| APA | IOUL. (2012, February 16). In Acronym Geek. Retrieved 14:07, February 16, 2012, from http://www.acronymgeek.com/IOUL |
| MLA | "IOUL." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/IOUL>. |
| MHRA | 'IOUL', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/IOUL> [accessed 16 February 2012] |
| Chicago | "IOUL", http://www.acronymgeek.com/IOUL (accessed February 16, 2012). |
| CBE/CSE | IOUL [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/IOUL. |
| Bluebook | IOUL, http://www.acronymgeek.com/IOUL (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IOUL, http://www.acronymgeek.com/IOUL (optional description here) (as of Feb. 16, 2012, 14:07). |
| AMA | IOUL. Acronym Geek. February 16, 2012, 14:07. Available at: http://www.acronymgeek.com/IOUL. Accessed February 16, 2012, 14:07. |