| APA | RI. (2012, February 9). In Acronym Geek. Retrieved 13:44, February 9, 2012, from http://www.acronymgeek.com/RI |
| MLA | "RI." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/RI>. |
| MHRA | 'RI', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/RI> [accessed 9 February 2012] |
| Chicago | "RI", http://www.acronymgeek.com/RI (accessed February 9, 2012). |
| CBE/CSE | RI [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/RI. |
| Bluebook | RI, http://www.acronymgeek.com/RI (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, RI, http://www.acronymgeek.com/RI (optional description here) (as of Feb. 9, 2012, 13:44). |
| AMA | RI. Acronym Geek. February 9, 2012, 13:44. Available at: http://www.acronymgeek.com/RI. Accessed February 9, 2012, 13:44. |