| APA | R4F. (2012, February 14). In Acronym Geek. Retrieved 07:21, February 14, 2012, from http://www.acronymgeek.com/R4F |
| MLA | "R4F." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/R4F>. |
| MHRA | 'R4F', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/R4F> [accessed 14 February 2012] |
| Chicago | "R4F", http://www.acronymgeek.com/R4F (accessed February 14, 2012). |
| CBE/CSE | R4F [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/R4F. |
| Bluebook | R4F, http://www.acronymgeek.com/R4F (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, R4F, http://www.acronymgeek.com/R4F (optional description here) (as of Feb. 14, 2012, 07:21). |
| AMA | R4F. Acronym Geek. February 14, 2012, 07:21. Available at: http://www.acronymgeek.com/R4F. Accessed February 14, 2012, 07:21. |