| APA | PUER. (2012, February 15). In Acronym Geek. Retrieved 23:04, February 15, 2012, from http://www.acronymgeek.com/PUER |
| MLA | "PUER." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PUER>. |
| MHRA | 'PUER', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PUER> [accessed 15 February 2012] |
| Chicago | "PUER", http://www.acronymgeek.com/PUER (accessed February 15, 2012). |
| CBE/CSE | PUER [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PUER. |
| Bluebook | PUER, http://www.acronymgeek.com/PUER (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PUER, http://www.acronymgeek.com/PUER (optional description here) (as of Feb. 15, 2012, 23:04). |
| AMA | PUER. Acronym Geek. February 15, 2012, 23:04. Available at: http://www.acronymgeek.com/PUER. Accessed February 15, 2012, 23:04. |