| APA | R4B. (2012, February 14). In Acronym Geek. Retrieved 10:15, February 14, 2012, from http://www.acronymgeek.com/R4B |
| MLA | "R4B." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/R4B>. |
| MHRA | 'R4B', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/R4B> [accessed 14 February 2012] |
| Chicago | "R4B", http://www.acronymgeek.com/R4B (accessed February 14, 2012). |
| CBE/CSE | R4B [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/R4B. |
| Bluebook | R4B, http://www.acronymgeek.com/R4B (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, R4B, http://www.acronymgeek.com/R4B (optional description here) (as of Feb. 14, 2012, 10:15). |
| AMA | R4B. Acronym Geek. February 14, 2012, 10:15. Available at: http://www.acronymgeek.com/R4B. Accessed February 14, 2012, 10:15. |