| APA | RA-228. (2012, February 12). In Acronym Geek. Retrieved 13:21, February 12, 2012, from http://www.acronymgeek.com/RA-228 |
| MLA | "RA-228." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/RA-228>. |
| MHRA | 'RA-228', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/RA-228> [accessed 12 February 2012] |
| Chicago | "RA-228", http://www.acronymgeek.com/RA-228 (accessed February 12, 2012). |
| CBE/CSE | RA-228 [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/RA-228. |
| Bluebook | RA-228, http://www.acronymgeek.com/RA-228 (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, RA-228, http://www.acronymgeek.com/RA-228 (optional description here) (as of Feb. 12, 2012, 13:21). |
| AMA | RA-228. Acronym Geek. February 12, 2012, 13:21. Available at: http://www.acronymgeek.com/RA-228. Accessed February 12, 2012, 13:21. |