| APA | 981. (2012, February 11). In Acronym Geek. Retrieved 22:36, February 11, 2012, from http://www.acronymgeek.com/981 |
| MLA | "981." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/981>. |
| MHRA | '981', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/981> [accessed 11 February 2012] |
| Chicago | "981", http://www.acronymgeek.com/981 (accessed February 11, 2012). |
| CBE/CSE | 981 [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/981. |
| Bluebook | 981, http://www.acronymgeek.com/981 (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 981, http://www.acronymgeek.com/981 (optional description here) (as of Feb. 11, 2012, 22:36). |
| AMA | 981. Acronym Geek. February 11, 2012, 22:36. Available at: http://www.acronymgeek.com/981. Accessed February 11, 2012, 22:36. |