| APA | IV. (2012, February 4). In Acronym Geek. Retrieved 11:11, February 4, 2012, from http://www.acronymgeek.com/IV |
| MLA | "IV." Acronym Geek. (2012). Acronym Geek. 4 Feb 2012 <http://www.acronymgeek.com/IV>. |
| MHRA | 'IV', Acronym Geek, 4 February 2012, <http://www.acronymgeek.com/IV> [accessed 4 February 2012] |
| Chicago | "IV", http://www.acronymgeek.com/IV (accessed February 4, 2012). |
| CBE/CSE | IV [Internet]. Acronym Geek; 2012 Feb 4 [cited 2012 Feb 4]. Available from: http://www.acronymgeek.com/IV. |
| Bluebook | IV, http://www.acronymgeek.com/IV (last visited February 4, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IV, http://www.acronymgeek.com/IV (optional description here) (as of Feb. 4, 2012, 11:11). |
| AMA | IV. Acronym Geek. February 4, 2012, 11:11. Available at: http://www.acronymgeek.com/IV. Accessed February 4, 2012, 11:11. |