| APA | RPI. (2012, February 9). In Acronym Geek. Retrieved 19:04, February 9, 2012, from http://www.acronymgeek.com/RPI |
| MLA | "RPI." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/RPI>. |
| MHRA | 'RPI', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/RPI> [accessed 9 February 2012] |
| Chicago | "RPI", http://www.acronymgeek.com/RPI (accessed February 9, 2012). |
| CBE/CSE | RPI [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/RPI. |
| Bluebook | RPI, http://www.acronymgeek.com/RPI (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, RPI, http://www.acronymgeek.com/RPI (optional description here) (as of Feb. 9, 2012, 19:04). |
| AMA | RPI. Acronym Geek. February 9, 2012, 19:04. Available at: http://www.acronymgeek.com/RPI. Accessed February 9, 2012, 19:04. |