| APA | RFEI. (2012, February 16). In Acronym Geek. Retrieved 03:24, February 16, 2012, from http://www.acronymgeek.com/RFEI |
| MLA | "RFEI." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/RFEI>. |
| MHRA | 'RFEI', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/RFEI> [accessed 16 February 2012] |
| Chicago | "RFEI", http://www.acronymgeek.com/RFEI (accessed February 16, 2012). |
| CBE/CSE | RFEI [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/RFEI. |
| Bluebook | RFEI, http://www.acronymgeek.com/RFEI (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, RFEI, http://www.acronymgeek.com/RFEI (optional description here) (as of Feb. 16, 2012, 03:24). |
| AMA | RFEI. Acronym Geek. February 16, 2012, 03:24. Available at: http://www.acronymgeek.com/RFEI. Accessed February 16, 2012, 03:24. |