| Style | Reference Text |
|---|
| APA | 891. (2010, February 9). In Acronym Geek. Retrieved 22:51, February 9, 2010, from http://www.acronymgeek.com/891 |
| MLA | "891." Acronym Geek. 9 Feb 2010, 22:51. Acronym Geek. 9 Feb 2010 <http://www.acronymgeek.com/891>. |
| MHRA | '891', Acronym Geek, 9 February 2010, 22:51, <http://www.acronymgeek.com/891> [accessed 9 February 2010] |
| Chicago | "891," http://www.acronymgeek.com/891 (accessed February 9, 2010). |
| CBE/CSE | 891 [Internet]. Acronym Geek; 2010 Feb 9, 22:51 [cited 2010 Feb 9]. Available from: http://www.acronymgeek.com/891. |
| Bluebook | 891, http://www.acronymgeek.com/891 (last visited February 9, 2010). |
| Bluebook: Harvard JOLT | See Acronym Geek, 891, http://www.acronymgeek.com/891 (optional description here) (as of Feb. 9, 2010, 22:51). |
| AMA | 891. Acronym Geek. February 9, 2010, 22:51. Available at: http://www.acronymgeek.com/891. Accessed February 9, 2010. |