| APA | PIL. (2012, February 14). In Acronym Geek. Retrieved 07:56, February 14, 2012, from http://www.acronymgeek.com/PIL |
| MLA | "PIL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PIL>. |
| MHRA | 'PIL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PIL> [accessed 14 February 2012] |
| Chicago | "PIL", http://www.acronymgeek.com/PIL (accessed February 14, 2012). |
| CBE/CSE | PIL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PIL. |
| Bluebook | PIL, http://www.acronymgeek.com/PIL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PIL, http://www.acronymgeek.com/PIL (optional description here) (as of Feb. 14, 2012, 07:56). |
| AMA | PIL. Acronym Geek. February 14, 2012, 07:56. Available at: http://www.acronymgeek.com/PIL. Accessed February 14, 2012, 07:56. |