| APA | PIYE. (2012, February 17). In Acronym Geek. Retrieved 03:20, February 17, 2012, from http://www.acronymgeek.com/PIYE |
| MLA | "PIYE." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PIYE>. |
| MHRA | 'PIYE', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PIYE> [accessed 17 February 2012] |
| Chicago | "PIYE", http://www.acronymgeek.com/PIYE (accessed February 17, 2012). |
| CBE/CSE | PIYE [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PIYE. |
| Bluebook | PIYE, http://www.acronymgeek.com/PIYE (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PIYE, http://www.acronymgeek.com/PIYE (optional description here) (as of Feb. 17, 2012, 03:20). |
| AMA | PIYE. Acronym Geek. February 17, 2012, 03:20. Available at: http://www.acronymgeek.com/PIYE. Accessed February 17, 2012, 03:20. |