| APA | 15R. (2012, February 13). In Acronym Geek. Retrieved 23:57, February 13, 2012, from http://www.acronymgeek.com/15R |
| MLA | "15R." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/15R>. |
| MHRA | '15R', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/15R> [accessed 13 February 2012] |
| Chicago | "15R", http://www.acronymgeek.com/15R (accessed February 13, 2012). |
| CBE/CSE | 15R [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/15R. |
| Bluebook | 15R, http://www.acronymgeek.com/15R (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 15R, http://www.acronymgeek.com/15R (optional description here) (as of Feb. 13, 2012, 23:57). |
| AMA | 15R. Acronym Geek. February 13, 2012, 23:57. Available at: http://www.acronymgeek.com/15R. Accessed February 13, 2012, 23:57. |