| APA | PRE. (2012, February 7). In Acronym Geek. Retrieved 22:57, February 7, 2012, from http://www.acronymgeek.com/PRE |
| MLA | "PRE." Acronym Geek. (2012). Acronym Geek. 7 Feb 2012 <http://www.acronymgeek.com/PRE>. |
| MHRA | 'PRE', Acronym Geek, 7 February 2012, <http://www.acronymgeek.com/PRE> [accessed 7 February 2012] |
| Chicago | "PRE", http://www.acronymgeek.com/PRE (accessed February 7, 2012). |
| CBE/CSE | PRE [Internet]. Acronym Geek; 2012 Feb 7 [cited 2012 Feb 7]. Available from: http://www.acronymgeek.com/PRE. |
| Bluebook | PRE, http://www.acronymgeek.com/PRE (last visited February 7, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PRE, http://www.acronymgeek.com/PRE (optional description here) (as of Feb. 7, 2012, 22:57). |
| AMA | PRE. Acronym Geek. February 7, 2012, 22:57. Available at: http://www.acronymgeek.com/PRE. Accessed February 7, 2012, 22:57. |